If you like the design and the speed of the new context menu, but you find it useless, I have good news for you: you can customize it and make the new Win11 context more personalized.
To remove unused items, you must remove items from the registry. You'll find some items in these folders, but you can also search for specific items you see in the context menu.
HKEY_CLASSES_ROOT\Folder\shell\
(Do NOT remove opennewwindow
- it is required for file explorer to work on your windows tray.)
HKEY_CLASSES_ROOT\exefile\shellex\ContextMenuHandlers\