Hi, FrancisKing381. Can I know whether or not the system in question is based upon AMD (CPU only) or not?
I had a problem that cropped up after an update shifted the overall system OS (at dom0 vs. at the appvm level & without me utilizing the early adopter route of kernel-latest or anything outside of Qubes vanilla) & since I use multiple systems that use Qubes & it only seems to have occurred on my AMD system, I observed as much on the forum at the time. If you have an Intel CPU then it would not seem to be related.
No responses, which I took in stride since I operate differently than a lot of people do. I have not been able to dig much into this & have waited for other people to protest/comment on either my post or make ones of their own. If you use a dom0 terminal window & try poweroff or the other systemd commands for commanding the system to shutdown it likely behaves the same but perhaps there is something here which changes between architectures or systemd components & perhaps someone can have a looksie. This used to work before the move to more recent kernels & is a minor inconvenience.