It's a nightmare scenario for Microsoft. The headlining feature of its new Copilot+ PC initiative, which is supposed to drive millions of PC sales over the next couple of years, is under significant fire for being what many say is a major breach of privacy and security on Windows. That feature in question is Windows Recall, a new AI tool designed to remember everything you do on Windows. The feature that we never asked and never wanted it.
Microsoft, has done a lot to degrade the Windows user experience over the last few years. Everything from obtrusive advertisements to full-screen popups, ignoring app defaults, forcing a Microsoft Account, and more have eroded the trust relationship between Windows users and Microsoft.
It's no surprise that users are already assuming that Microsoft will eventually end up collecting that data and using it to shape advertisements for you. That really would be a huge invasion of privacy, and people fully expect Microsoft to do it, and it's those bad Windows practices that have led people to this conclusion.
Did you mean to say "any game that runs on the Steam Deck runs on Steam Linux?"
If so, the answer is yes. It's honestly surprising these days to run across a steam title that doesn't run in linux (though always look into the anti-cheat situation for online games).