Search for settings and options IMO is fine. "Settings" are by definition not user-friendly, since every time you need to tweak them is a case of something not working like you need it to.
The main problem is that you can never find settings that are not there anymore. Or settings for "new features" that are not really configurable (and you notice that as if entirely delivered via web).
Settings aside, on a more basic level, Win11 became the first Windows where MSPaint and Notepad, after many upgrades, stopped being useful general-purpose applications.
Start menu, that was OK-ish in Win10, was made useless. To me personally: entirely dysfunctional compared to search. (And Search now is even more eager to send you to the web search results.)
The Win11's Taskbar remains by far the most counter-productive "upgrade" ever. Yes, you can still disable "grouping" and show titles, but. You can't move Taskbar to left/right/top. You can't disable overflow. You can't have two rows. If you need 10+ windows open, then you are out of luck. MS Office/etc alone take 5+ windows. Need to switch constantly between 3-5 reference manuals and 2-3 IDEs? Tough luck. (Even wider displays are of limited help.)
P.S. At least one could still change Alt-Tab to work in the old-style task switcher, without "previews"/with icons-only. Hurray! Something in Win11 is working! It's not complete failure!