I use 2 nodes with the latest Updates. I live migrated my VMs to my second node, upgraded the few packages:
Upgrade: pve-qemu-kvm:amd64 (5.1.0-3, 5.1.0-4), pve-manager:amd64 (6.2-14, 6.2-15), qemu-server:amd64 (6.2-17, 6.2-18), libproxmox-backup-qemu0:amd64 (0.7.0-1, 0.7.1-1)
After the Update...