With all respect - and I have a huge amount of that - we need to keep Whonix accessible to folks who will be alienated if they can only launch programs from Terminal all the time. Hell, what’s the point of even having Whisker Menu if we can’t launch programs like GParted from it? That is brokenness, this needs to be fixed.
Besides, GParted is only one example of whatever this Whonix 15 Buster XFCE problem is. It’s some weird policykit issue, and it will affect many programs in Debian.
@Patrick I don’t know why you’ve split this up into different topics - the symptom is the same problem, I’ve only giving different examples.