Win 10 was "OK"...
Agreed. Plus of course, lots of people look upon Windows 10 as being a "good" release, but it wasn't, not really. It was simply "OK" and better than Windows 8, and I feel that in comparison to Windows 11, a lot of people look back at it with rose-tinted spectacles.
Let's not beat around the bush:
* It began the rot of requiring a Microsoft account - although it was easier to bypass than with Windows 11.
* The UI was one of the flattest, blandest and dreariest UIs Microsoft has ever come up.
* It had the mis-mash of Settings and Control Panel - something Microsoft introduced in 2012 with Windows 8 and a migration they still haven't managed to complete 14 years later. I won't dwell on the failings of the toggle-switch design that needs an accompanying text label to confirm if it's "on" or "off"...
* There was all the sneaky installing of programs you didn't ask for (Candy Crush anyone?)
* The Start Menu was a definite step back from Windows 7's in terms of flexibility, usability and design.
* Cortana was a hopeless flop, as were many of the other Metro-style utilities Microsoft pushed throughout Win10's life, such as Paint3D, Snip & Sketch etc.
* It introduced forced updates and earlier versions were unbelievably trigger-happy about rebooting when you were in the middle of working.
* The twice-yearly "feature" updates were introduced that regularly broke things and offered little of value.
Ultimately, it simply never felt like a finished, polished product. It always felt like it was a beta release with half-finished/rushed placeholder content. Whether it was the bodged-together start menu (shrink the Windows 8 Start screen and bung a list of programs down the left), the basic bingy-bongy sound effects that sounded like they'd been rustled up in 10 minutes by an intern with a cheap keyboard, the unfinished Settings, heck even the throbber which isn't a smoothly looping animation but which stops and starts all the time. It always felt "unfinished".
On the plus side, it was at least customisable and ran on a wide range of hardware. Overall, it was "OK", but it wasn't "Good". I still maintain Windows 7 is the last MS OS that ticked all the boxes, felt properly "finished" and felt like it was designed to be what users wanted, not just what Microsoft wanted.