I think the straw that broke the camel's back for me was when I learned msvc compiles telemetry calls into every binary.

It took a few years after that incident for the linux gaming ecosystem to mature to a point that I could switch over entirely, but I'm there now. EVERY time I use windows now, I groan at something it tries to do without me asking. It's so nice knowing that my PC will only do what I ask it to now, and that I won't get pushed into yet another garbage UI overhaul I didn't ask for.