You could check out "Explorer Patcher".I also upgraded to Win11 last weekend. I decided to go with a new install and then move all the needed apps and settings there which took quite a while, but the benefit is a clean system to start with. Seems to be quite OK, I guess they ironed most of the bad stuff after a year and some. The only thing I'm actually missing is the ability to move a single taskbar on a secondary monitor. It's either show it on the main display or show on all displays, but the latter option doesn't how tray icons on a secondary screen. Why they had to remove this functionality is beyond me, I hope they're gonna bring it back some time soon, I really need it
I don't know if it enables what you need, but I needed to have the taskbar at the top of the screen for my Surface Pro 8, which ships with Win 11 and it's another feature not available in Win 11 anymore.