Could you please try this a bit further? For me those shortcuts are working fine on the M1 (both MacMini and MBP). Are other shortcuts working correctly or are all broken? I know currently of one known issue with shortcuts, that with some language settings it is possible to break some shortcuts temporarily by pressing the key below the ESC key (as it triggers some kind of composition mode).
It would be great, if you could write bug reports about those issues, optimally from the client (F12 (or Help menu from Neocom) - Report Bug) - please include screenshots for the graphical glitches.