Finder bar disappeared and all menus & links greyed out and unclickable after Monterey upgrade

Nicoboyo wrote:

Yes the shortcuts, couldn’t think of the word, but they appear totally disabled as they’re all unclickable and a colour close to the background. If it’s a standard apple colour thing then that’s very daft.

You don't click a shortcut. You click the menu command. If you do click the shortcut, it doesn't matter as that is all part of the clickable portion of the menu item. If the menu command is disabled, then you can't click anywhere. If the menu command is enabled, you can click anywhere on the line. The shortcut color has nothing whatsoever to do with the command being enabled or not. If the command is available, the whole line will highlight in your selected highlight color.

If you can't tell the difference between the active and disabled commands in the menu, then you can try adjusting the black level (brightness) and contrast of your monitor in order to make them more obvious.

You can also try the contrast options in the Accessibility system preferences.

I can’t access any menu’s, I can just open system preferences but again I can’t access anything via the side menu bars

That's an entirely different problem that has nothing whatsoever to do with the color of the shortcuts.

I have never seen that myself, nor do I remember anyone else posting a similar problem.