They are reduced by 90%
85% is what I use on my iPhone
Here is a screenshot
It's not crazy busy
I think it looks good, suits the size of the iPad screen better
That is NOT a reduction by 90%. That looks like it might be a reduction to 90% of it's original size. A reduction by 90% would make the icons 1/10th their normal size which means the icons would take up 8x8 pixels when rounded up.
I have a honest question, say I have neighbor who has 6+ TB of movies and music on a computer that he's collected over a a long period of time. The media is a mixture of different codecs just like most peoples questionable collections. Which platform would you recommend as a first time tablet buyer who wants to play all his media. A iPad or a popular Android tablet, The user has never used either platform.
1) The buyer should always get the product that they think fits their needs best.
2) Since you've presented this hypothetical as only using multiple codecs collected over a very long time that includes video the only answer is a tablet that can play every potential codec either out of the box or with an add on. You've phrased in a way that is not a fallacious argument but it's a niche hypothetical geared to only allow the the Android tablet to be the only option. I think there is a philosophical term for that kind of statement but I can't think of it.