Keyboard (shortcuts) no longer working after update to CC2023 (Indd 18.0 x64)

I opened my computer this morning to find Adobe CC was updated to 2023.
Illustrator and Photoshop are ok, but InDesign has left me with a really irritating issue. It is clearly in this version, since the previous version, which is not deleted and still working, doesn't have the issue.

The keyboard is not working anymore.
Ctrl-N, Ctrl-C, Ctrl-V, or any of the shortcuts to the tools (M, V, A, G, T, etc.) aren't working. I can click everything with the mouse, and when I draw a textbox with the mouse I can type text IN it (but not delete it, because backspace isn't working either), but outside the textbox nothing on the keyboard functions.

I have rebooted the computer 4 times, deleted preferences (Ctrl-Alt-Shift upon Indd startup), but to no avail.
Anyone else seeing this happening?

Windows 10 on a ZBoook (neither inbuilt nor external keyboard works).