I just don't have problems with Windows 10..at least once they made it so the Start menu didn't turn your machine into a giant iPad.
Changing start menu constantly. Doubles-up the Settings/Old Control Panel menus and doesn't consolidate them five years into Windows 10. Updates that break every patch Tuesday because Nadella and his Indian coding army doesn't have a QA team anymore (hello, files being deleted after an update that people YELLED at MS to fix during a BETA patch process of that, they didn't, launched it: YEP ATE FILES). Installing shit that I don't want (Edge, which I uninstalled only for it to reinstall and remove the uninstall option next update), every update. Said installing shit is entirely redundant (Paint/Paint3D, which if I'm using Photoshop CS2, doesn't need to be there).
Forces you to go through their shitty walled garden launcher (which wouldn't be horrible if the fucking store wasn't HORRIBLE and UWP apps didn't eat themselves/cause problems [hello, PSO2!]) to install Linux distros that aren't Ubuntu in the newer WSfL's. Or use that to install the Windows Terminal update that allows you to have Powershell, DOS/Command Prompt, Linux terminal all in one window. Or installing the Chocolate like automation installer scripts that MS made [forgetting the name off-hand].
Turn off telemetery for privacy/etc. reasons? Breaks half of Windows.
Yep, it's Windows 10 time!
As much of an improvement over Windows 8 Windows 10 is: I fucking hate how their development team for the OS absolutely bungles everything.
Windows 7 is the last good Windows.
they recently put out a mass update that stopped printing from working and randomly turned on tablet mode (the full screen ipad thing)
if you're going to force auto update so aggressively then test your shit

https://www.techradar.com/amp/news/windows-10s-latest-update-fail-could-break-your-desktop-heres-how-to-fix-it
https://www.howtogeek.com/658194/windows-10s-new-update-is-deleting-peoples-files-again/MS changing shit and not having it be consistent even five years into Windows 10's "OS as a Service" is fucking dumb.
right?
its amazing how even MacOS has become shittier with apple chasing that smartphone money (cant blame them) but from an outsider's perspective, MacOS doesn't look that good
didn't think we'd be in a situation where linux looks good, but here we are (linux still sucks tho)
Don't even get me started on how OS X has started to fail since like 10.8/Mountain Lion. Jobs would be utterly rolling in his grave over how much Apple focuses on iPhones and has lost the plot with their Mac division to where artists have been going Windows/Linux because the Apple tax isn't worth it anymore.