In my case, the interval is set to 0.5 which has a slight delay but enough for me to not mind. I usually have a mental idea of what mode I am in at all times.
> Can I somehow change the cursor system-wide?
Check the arch wiki article on Cursor themes[0]. Generally,, DEs have nice support for switching cursor themes after startup. In either case, you would need to modify `xkb_swapper.sh` to set a cursor theme whenever the mode is changed.
If I simply ran the command (`xdotool key ctrl+Right`) in normal mode, it would work but it didn't work via a binding.
This was infact the initial idea behind all this but after quite some testing xdotool turned out to be unreliable so I repurposed it as a shortcut layer.
I tried doing the same using xdotool by binding Ctrl+F<something> to PageDown but for some reason it didn't work for some reason and I didn't investigate enough.