Browsers like Chrome and Firefox can abandon WebKit in EU with iOS 17.4
EU regulations in the Digital Markets Act have forced Apple to allow full versions of third-party browsers on iPhone, and Apple isn't happy.

Alternate browser choices
Safari runs on Apple's WebKit engine, and other browsers on iPhone have been required to use WebKit until now, at least in the EU. Starting in iOS 17.4, users will be prompted with the ability to set up a default third-party web browser upon launching Safari.
The change arrives alongside many other sweeping changes enacted by the Digital Markets Act. It forces Apple to change how the App Store and commerce works in the EU.
Besides side loading and alternative app stores, Apple snuck in another change required by the DMA -- alternative browsers and engines. Chrome can now use Chromium, for example.
When users first launch Safari while running iOS 17.4 in the EU, they will be presented with the option to change to a different default browser. Apple's messaging on this change was clearly negative.
This change is a result of the DMA's requirements, and means that EU users will be confronted with a list of default browsers before they have the opportunity to understand the options available to them. The screen also interrupts EU users' experience the first time they open Safari intending to navigate to a webpage.
Any browser available in the App Store may appear as an option. Updates with the new web engines will likely come as soon as the developers can implement the change.
Read on AppleInsider

Comments
Now it’s not like there aren’t other very fine browsers out there. I know, I check around from time to time. On my own. Without help from the nannies at the EC.
You say that like the company is spineless. The EU is the master regulatory body for the continent. If Apple wants to sell its products in EU countries, it can file a few years' worth of appeals on rules it doesn't like, but, in the end, it has no choice but to capitulate if it wants to keep doing business there. The same situation applies in China.
The EU is only 19% of the worldwide sales for Apple Computer and that number is falling, and like the UK they have a overinflated view of themselves the next growth areas in the world won't involve them, when a company like Transsion comes out of nowhere the future battlegrounds are elsewhere going into the mid century. This is like Brexit one of the last battle cries of the old world.
Apple has fought hard to not do regional splits but they will if comes to it in the end. (its time for Apple to think of entire world the other 2/3 is growing fast)
https://en.wikipedia.org/wiki/Transsion
https://seekingalpha.com/news/4059069-apple-app-store-eu-changes-to-have-limited-financial-impact Oops even less Appstore sales?
They aren't pushing users to do business outside the Apple App Store.
They have pushed Apple to give developers and users choice.