Agreed, this has been my experience as well. I tried switching to full time Linux multiple times. I had already used it on my laptop for years but on my desktop I kept going back to Windows because things on Windows just worked the way I wanted and thought that for some things there weren’t any Linux alternatives.
That was until two years ago I challenged myself to only use Linux for a month. I’ve been using Linux on my desktop ever since and only use Windows now and then to play a single game that doesn’t work on Linux due to anti cheat.
Didn’t we reach a point where EULAs are non-enforcable? Or is that just in the EU? But regardless, Valve can just ban you and good luck doing anything about it.