Kind of an update on this:-
I tried the
{86ca1aa0-34aa-4e8b-a509-50c905bae2a2} reg hack & it made
some difference - but not enough to improve MC context menu (back to W10 level).
Installing
KB5031455 seems to have made a noticeable difference ....but not to the items I want to see most

I should also mention the MC
shutdown failure on W11. It will only fully close & disappear from the desktop about 5% of the time, normally it seems to close in terms of activity but the window/taskbar tag remains visible & the process is still visible in TM. You just can't interact with it in any real way.
It does recall it's last settings however, when reopened after a reboot so it's not quite a disaster
