Indeed, there are quite a few usability shortcomings. [1]
That’s a bug indeed which will hopefully one day be fixed. References:
- Clipboard Sharing
- How to enable Shared Clipboard & Drag-and-Drop features inside VirtualBox with Whonix-LXQt-18.0.8.7 ?
Browsers aren’t blocked if started from the command line (implementing this is hard, would require a restricted shell, depending on if that’s an accidental protection of enforcement).
Not something we encourage.
Opening text files isn’t blocked in sysmaint mode.
It’s just a bit complicated due to the Linux permission model that we inherit. Files located in home folder owned by account user (no sudo/root access by default) cannot be accessed by account sysmaint, even though that account has sudo/root access by default.
The question is:
How to (safely) open a file owned by a different Linux user account? (If you have sudo/root access.)
(Which you do have in sysmaint mode.)
Can be found out using Self Support First Policy for Whonix?
Keyboard layout can be configured, see:
[1]