A contrarian note in the sea of negativity here: I have it on all my machines since the insiders release a couple of months ago and I'm very happy. Everything works. WSL2 has GUI support. UI looks nicer than Win10. I'm not sure about the hardware compatibility gripes -- will it really not install on old hardware or is this about "supported" status? It runs just fine on my Surface Go fwiw.
The taskbar for me is the thing which makes Windows 11 completely ruinous:
1. No drag and drop support, so you need to drag + alt-tab in order to find the right window to dnd into.
2. Windows in the same program always collapse into the same item, with no option to have them split out. To find the one you want, you have to use the flyout previews, which do not have titles. Clicking the taskbar button itself nondeterministically chooses which window to open.
3. No text on the taskbar. Got two programs with similar icons? Tough.
4. The Start button is now completely useless once the crapware is removed. Clicking into the start menu's search bar actually switches you to a different, more useful menu (the search menu). There is no way to make the search menu the default.
5. The default menu size is enormous, taking up about 8% of screen retail for the sake of 5 or 6 buttons. Had to resort to registry hacks to get it down to a usable scale.
Those are just a few of the things that I stumble over daily, after about 6 weeks of using Windows 11. Windows 11 is NOT ready for general release and they seem to be actively punishing power users by removing the features they need in favour of "simplifying" the surface-level.