@adw Sorry its taken me a few days to get to this.
Thankyou.
However, despite having used Qubes for >2yrs now, I find myself squinting at the screen, muttering “What f&^@ is a ‘QSB’”?
OK, so I get it now (I got this info before by happening to look at your reddit stickies, I think). I could easily miss this, not because I don’t care.
Anyway. Just a signpost to where info is clear or opaque in all this, meant to be constructive.