Windows 10 was ok-ish until they announced

Windows 11 and ramped up it's enshitification... They improved the tiles idea a lot over windows 8

Windows phone 7 was great too...

I use Linux now though too, I've found flatpak isn't a silver bullet though: depending on what distro you're using and what distro whoever made the flatpak was using sometimes strange issues happen such as not loading in dark mode or losing settings on close/shutdown...