Hi AnkrumAG,
I've had very similar problems after the same Win 11 24H2 update:
1)- no right-click pop-up menus available from taskbar items ; all are now un-responsive ie., "dead";
2)- same goes for the bottom-right "internet access" icon and the "sound" icon on the right-hand system tray of taskbar;
3)- the above malfunctions (no2) cannot be corrected via personalization / taskbar in Settings menu, nor in the Time & language settings;
4)-the System Tray and Action Center pop-up dashboard, in the bottom right-hand corner, has disappeared!! Gone are the "Quick settings" panel !!
OK then.
Repeated re-boots do nothing at all to rectify the problem. Guess I'll just have to do like you AG, & simply remove that 11 24H2 update.... great stuff indeed!!
As for the colour settings in the taskbar, it's more of the same - non-functional options in Taskbar settings / Personalisation....