Updated my main Windows 10 retail version to the hopefully RTM Windows 11 and so far everything seems just fine.
My 8gadgetpack is still working great for my little Vista type side bar widgets and the maker of startisback is doing a Windows 11 version which is still in testing but works great. Get to use the left click for the Window 7 menu, wheel button for the Windows 11 menu and it restores the right click taskbar menu, allows me to use the Windows 10 explorer ribbon and even gives me the option built in to disable that stupid new Windows 11 basic context menu on folders
Even able to have the taskbar folders/programs show individually as named folders/programs and not combined into a single icon, hate that feature.
If anyone uses startisback it's available here for the 11 version.
http://startisback.com/tbd/