Made the switch to Mint recently. Steam says that of 750 games on my account, 748 can run on Linux, and I've had no problems with the dozen or so I've played lately.
This was also my exact reaction when I first came across a couple months ago. I promptly forgot about it until now, because I can't save it in my feed reader...
It piqued my curiousity too so I had a little look. It's called an Impressum. I think OP is incorrect that personal websites need to list a phone number and address - it seems to just apply to commercial entities.
See my reply to another commentor [0].
In short, the situation is a little confusing since even though your private blog may not be commercial, it may be regarded "businesslike" nontheless [1].
That being said, this legislation has been in place for some years now. I am not aware of any private person actually having had to face legal ramifications because of this and personally I would just omit it and say bring it.
Still, you see lots of private German blogs which do have an inprint, if you look out for it.
A shockingly large amount of music used in old flash games and in old YouTube videos is by Kevin MacLeod, whose released thousands of high quality tracks of all styles under CC-BY.
Reference books are the best candidates for being digitised. Why would you want to physically search a real physical library for hours to find a dusty forgotten book about a forgotten piece of equipment when you could just Ctrl+F and instantly find what you seek?
Any other kind of book I do much rather prefer the paper version though.
If you want a source, Steam Hardware Survey[0] somewhat agrees with what you're saying, especially when taking in to account that gamers would have better specs than average.
itch.io is massive for games if you want a new Newgrounds. The tech stack has moved on from Flash to use Unity or GameMaker or Godot or Construct. It's feasible for someone not knowing how to code to use most game engines to create something - not uncommon in Game Jams to see teams like that.
