Here are all the devices getting Matter support
Smart home device producers are starting to outline their plans for adding support for Matter, a standard that will allow communication with Homekit and other frameworks.

HomeKit supports Matter
Matter is an important standard for home owners, with it able to help enable the communication of smart home devices across different competing frameworks. For example, a device made to work with Samsung SmartThings could still work with Apple's HomeKit if it supports Matter.
With support from companies increasing in short order, manufacturers are starting to detail how they will be rolling out updates to make their hardware work with the specification.
Aqara's other hubs will also receive firmware update in the following months, including the Hub M1S Gen 1 and Gen 1, the Hub E1, the Camera Hub G2H Pro, and the Camera Hub G3.
In total, more than 40 Aqara Zigbee devices will support Matter once the software updates start to roll out. Ultimately, Aqara intends to extend that support to over 160 devices.
The list of soon-to-support Matter devices includes:

The Brilliant wall panel will get Matter support
The company doesn't say what specific devices will gain support, beyond the smart home controllers and light systems description.

Eve Motion 2 will soon be updated with Matter support
The Eve Door & Window contact sensor, the Eve Motion sensor, and the Eve Energy smart plugs for the U.S. and Canada, Europe, U.K, and Australia have all completed Matter certification. From December 12, they can all be updated in the Eve app to add the support.
As for the rest of the range, EvE says it will be issuing more free firmware updates to its entire Thread-enabled range over time.
Matter-certified Eve products will arrive at retail in the first quarter of 2023.

Hue outdoor motion sensor
The update, which appeared in the CSA Matter certification database on Thursday and spotted by The Verge says a software update will arrive on the Hue Bridge soon.
Since Philips Hue relies on a bridge for the majority of its products, the arrival of the firmware to the bridge will make "all existing and new Hue lights and accessories automatically Matter-related too." The exceptions are the Hue Sync Box and the dial of the Tap dial switch.
As for when it will roll out, parent company Signify has said it would update the bridge as close to the launch of the standard. Given the Matter launch event occurs on Thursday, the update should be happening soon.

Schnieder Electric's Wiser Gateway
The Wiser Smart Plug, useful for Schnieder Electric's home energy management system (HEMS), will receive its own independent Matter certification without reliance on the Wiser Gateway.
In the first year, Amazon will be focusing on Matter over Wi-Fi. 17 Echo devices will gain Matter support and Amazon will prioritize plugs, switches, and bulb in this first round. It will also only support setup over Android at the onset.
Next year, Amazon will release support for Matter of Thread and will support more Echo devices. Eero devices will also get Matter support next year. Finally, next year we'll see additional device types from Amazon and setup over iOS.
To go with its newfound Matter support Amazon is launching a new certification program for devices that work with Matter and want to highlight the Works with Alexa (WWA) badge on their box.

Samsung SmartThings Hub
But Samsung's support doesn't end there. It has announced plans for its TVs and Family Hub refrigerators to act as display controllers, commanding the other Matter devices in your home.
Read on AppleInsider

HomeKit supports Matter
Matter is an important standard for home owners, with it able to help enable the communication of smart home devices across different competing frameworks. For example, a device made to work with Samsung SmartThings could still work with Apple's HomeKit if it supports Matter.
With support from companies increasing in short order, manufacturers are starting to detail how they will be rolling out updates to make their hardware work with the specification.
Aqara
On November 3, Aqara revealed it will be bringing Matter out in December 2022, with an over-the-air firmware for the Aqara Hub M2. Subsequently, existing Aqara devices with Zigbee that connect via the hub will then benefit from Matter.Aqara's other hubs will also receive firmware update in the following months, including the Hub M1S Gen 1 and Gen 1, the Hub E1, the Camera Hub G2H Pro, and the Camera Hub G3.
In total, more than 40 Aqara Zigbee devices will support Matter once the software updates start to roll out. Ultimately, Aqara intends to extend that support to over 160 devices.
The list of soon-to-support Matter devices includes:
- Door & Window Sensor
- Temperature & Humidity Sensor
- Motion Sensor and Motion Sensor P1
- Vibration Sensor
- Smart Wall Switch (US)
- Smart Wall Switch H1 EU
- Smart Plug (US & EU)
- Single Switch Module T1
- Wireless Mini Switch
- Wireless Remote Switch H1
- Wireless Remote Switch (Single & Double Rocker)
- Radiator Thermostat E1
- Roller Shade Driver E1
- Curtain Driver E1
- Roller Shade Controller (Zigbee 1.2)
- LED Bulb and LED Bulb T1 (Tunable White)
Brilliant
Brilliant announced on November 3 that it has joined the Connectivity Standards Alliance as a Participant Member. While this will involve contributing to the Matter Working Group, Brilliant is also bringing Matter support to its all-in-one smart home controllers and smart light systems in 2023.
The Brilliant wall panel will get Matter support
The company doesn't say what specific devices will gain support, beyond the smart home controllers and light systems description.
Eve
Eve Systems also announced compatibility with Matter, for three Thread-enabled smart home devices.
Eve Motion 2 will soon be updated with Matter support
The Eve Door & Window contact sensor, the Eve Motion sensor, and the Eve Energy smart plugs for the U.S. and Canada, Europe, U.K, and Australia have all completed Matter certification. From December 12, they can all be updated in the Eve app to add the support.
As for the rest of the range, EvE says it will be issuing more free firmware updates to its entire Thread-enabled range over time.
Matter-certified Eve products will arrive at retail in the first quarter of 2023.
Philips Hue
Famed smart light brand Philips Hue is also going to be joining the Matter ranks. Before press releases announcing the change, it was discovered support will be coming to the Hue Bridge.
Hue outdoor motion sensor
The update, which appeared in the CSA Matter certification database on Thursday and spotted by The Verge says a software update will arrive on the Hue Bridge soon.
Since Philips Hue relies on a bridge for the majority of its products, the arrival of the firmware to the bridge will make "all existing and new Hue lights and accessories automatically Matter-related too." The exceptions are the Hue Sync Box and the dial of the Tap dial switch.
As for when it will roll out, parent company Signify has said it would update the bridge as close to the launch of the standard. Given the Matter launch event occurs on Thursday, the update should be happening soon.
Schneider Electric
A brand little-known to most HomeKit users, Schneider Electric will be adding Matter support to its Wiser gateway as well as its Wiser Smart Plug. The hub will be getting a firmware update that will allow more than 200 Wiser Zigbee accessories to work with Matter.
Schnieder Electric's Wiser Gateway
The Wiser Smart Plug, useful for Schnieder Electric's home energy management system (HEMS), will receive its own independent Matter certification without reliance on the Wiser Gateway.
Amazon
The massive online retailer plans extensive support for Matter across its portfolio and has revealed two steps for the rollout.In the first year, Amazon will be focusing on Matter over Wi-Fi. 17 Echo devices will gain Matter support and Amazon will prioritize plugs, switches, and bulb in this first round. It will also only support setup over Android at the onset.
Next year, Amazon will release support for Matter of Thread and will support more Echo devices. Eero devices will also get Matter support next year. Finally, next year we'll see additional device types from Amazon and setup over iOS.
To go with its newfound Matter support Amazon is launching a new certification program for devices that work with Matter and want to highlight the Works with Alexa (WWA) badge on their box.
Samsung
Samsung's SmartThings app has already been Matter-certified, as has the South Korean company's SmartThings hub. That puts them on track with Apple in supporting Matter devices right this moment.
Samsung SmartThings Hub
But Samsung's support doesn't end there. It has announced plans for its TVs and Family Hub refrigerators to act as display controllers, commanding the other Matter devices in your home.
Read on AppleInsider
Comments
The foundation's site has a list of currently supported devices. https://csa-iot.org/csa-iot_products/page/3/?p_keywords&p_type%5B0%5D=17&p_type%5B1%5D=14&p_type%5B2%5D=1053&p_program_type%5B0%5D=1049&p_certificate&p_family
Cameras that record to iCloud:
And even then, some of these cameras which use HSV aren't secure. For example, "Only select outdoor eufyCam models support HomeKit Secure Video, specifically those than run through the HomeBase2 base station." So in other words, they are NOT directly using HSV. They are running their videos first through a base station which won't even function unless it has internet connectivity. And Eufy encourages users to use their cloud service, which gives Eufy access to the video from your cameras.
Perhaps it would help you if you watched an educational video about webcam insecurity like this one:
https://www.youtube.com/watch?v=92I5JwlluK4
And when you say you are using a "HomeKit hub", I presume you are referring to the "Eufy HomeBase2 base station", right? If you watch the video in the link in my previous post, you may learn how that base station bypasses HomeKit Secure Video security features, and how the hub directly communicates with servers back in China.
You said your cameras are "blocked at your firewall", which isn't the whole solution, because you also have to block all traffic from your HomeBase2 (which processes your video) to the internet. if you watch the video in the link above, you'll see why that can't be done.
You presume incorrectly. I'm referring to the Apple device that is acting as the current "controlling" HomeKit hub in the house. We have multiple HomePods & Apple TVs. Many are listed as hubs (may not be the correct term) in the Home app. Only one is the current, controlling HomeKit hub. THAT device manages the video from the camera, encrypting it, and uploading it to iCloud.
And regarding the cameras I do have, that requires the HomeBase2, it is the HomeBase2 that is blocked/monitored at the firewall. The HomeBase2 does not upload any video from my cameras to the internet.
There typically aren't wireless HomeKit cameras without a hub because of HomeKit's requirements. They are very taxing and will eat a battery insanely quickly, therefore it is the hub that gets certified for HomeKit or HSV. The hub is able to stay connected and responsive to all HomeKit requests while the camera is able to stay idle until motion is detected. True, Eufy wants you to use its own platform but you can use HomeKit Secure Video if you choose which is just as secure whether you're using a hub or not. And you still need internet access for HSV as it is uploaded to iCloud and not stored locally, even if the AI is processed locally to determine motion and subject.
"Video streamed from your Circle View Camera and iCloud is end-to-end encrypted to your devices, so only you and the people you share your Home app with can view it." - Logitech