Thus far the uptime is now 23 days and counting, best in a long time.
I'm not entirely confident disabling nesting and such has real effect but that's what worked before.
What also happened is
- removing the GPU from a VM, the GPU is now no...
an update, the kernel is now 6.11.11-2-pve
the freeze didn't stop with use of the default kernel and persisted
what did help was
- disable nesting (change amd to intel on Intel CPU)
create/edit
/etc/modprobe.d/kvm_amd.conf
copy this line...