I updated my PC to W11 a few days back because I can't afford to have my IT security compromised. It took me the best part of a day to get the BIOS setup to allow the update, along with the several hours long install. That's a day of productivity down the tubes.
I haven't seen a single 'gain' from the update so far, though in itself that doesn't bother me. If all the gains are in the background, no problem. On the other hand, I've needed to go hunting on the web to get back some of the easy access interface things I had with W10, especially quick access. Hence (thankfully) ending up here. This is more productivity hours down the drain.
At some point I'll probably try to find a way to see all my apps with one click rather that two, and how to get rid of features that I doubt I'll ever want. Microsoft team, please explain why I should value the menu recommending that I consider opening Picture Manager, just because I've used it a few times recently. This is like the apprentice asking the mechanic if s/he'd like the flat-bladed screwdriver, just because they used it for something yesterday. You are taking up screen space with nonsense - just stop.