I had this exact same issue with XFCE. After nearly an hour of digging through settings menus, I decided to abandon the DE entirely and switch to KDE, since it has native support for the feature as well as some other nice QoL stuff - full screen and window color inversion (super handy when using the Tor Browser) and a magnifier to name a few.
Once you have it installed. go to System Settings > Shortcuts > Global Shortcuts > System Settings and search for Window to Next Screen and Window to Previous Screen.
Thanks for the tip.
So far I’m liking the snappiness of XFCE. Fast, low resource demands so far.
How much of that will I lose with KDE in your experience?
What else do I gain with KDE?
Is swapping back and for a pretty safe endeavor, without breaking my system, or losing my settings?
I don’t see much difference between the two, even on machines with low
resources. Sometimes I see KDE using less than XFCE.
You’ll lose almost nothing and gain a good deal - far easier to control
and customise, and works far better with Qubes - look at the thread here
There are bugs - the sys-net icon is blank, or coloured in 4.1. The
stock menu is not customisable in 4.1 - this is a pain because it is
in 4.0, which is a core benefit.
I don’t use the menu a great deal,and I haven’t tried the new menu as yet.
It’s simple to switch back and forth - you just select one or other at
the login screen. You wont lose or break anything. (It’s possible to do
this while Qubes are running.)
I never presume to speak for the Qubes team.
When I comment in the Forum or in the mailing lists I speak for myself.
Unfortunately it would make a significantly larger iso. Currently, it fits to a (double-layer) DVDdisk. AFAIK installing from a disk is generally more secure than from a (rewritable) USB stick.