Enshitification of Windows was my reason, I was quite patient, I let it slide when they backported telemetry to Windows 7, Windows 10 was still quite usable but the amount of bloat was getting on my nerves already. When I saw what shitshow 11 is becoming I jumped ship. I’m glad I did it early and didn’t wait for Windows EOL.

Gentus Linux comes to mind, obscure distro based on Red Hat (not RHEL mind You) released by now forgotten ABIT, a motherboard manufacturer. I was daily driving it as teenager back in 2001 for couple of weeks until I learned by trial and error how to get windows 98 installed back. Another one would be Mandrake Linux which I was dual booting couple years later.