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Your Windows 10 PC will soon be 'junk' - users told to resist Microsoft deadline
(www.express.co.uk)
This is a most excellent place for technology news and articles.
Check protondb for reports on whether a specific (steam) game runs.
In my experience, pretty much everything that doesn't have anticheat works. I can't remember the last time a game didn't work fine, from stuff so old it stopped working in Windows Vista to day 1 AAA titles. Even DOS stuff is playable with DOSBox.
Just be aware, Linux is not windows. If you try to use it like windows, you will only experience pain. It's not hard, especially with mainstream distros like Ubuntu or Mint, but you really should invest at least a bit of effort into learning how the system works and how to use it properly.
As a funny aside, the reverse is also true. My first IT job that involved system administration I kept trying to treat the windows servers like I would Linux servers and that just doesn't work so well. Especially if you're making heavy use of powershell sessions and the administrative capabilities of powershell it can be really jarring when it works like Linux until it doesn't