Way back in the beginning, I had Proxmox installed as ext4. Later I installed as ZFS (single drive). Things have been more stable, but I've done alot of things here and there so I cant say that helped or not. But maybe try a ZFS install and see what happens? I'm using the 6.1 kernel btw.Sadly on my Topton SFF PC with Intel N6005 VMs wont boot on 6.1 kernel (same problems on unofficial 6.0-edge kernels). On 5.19 no problem. VMs are not able to boot from local-lvm storage (nvme-ssd). Its possible to create new VM run installation until vhdd partitioning, but then it fails.
i get error like this: Could not read L1 table: Invalid argument TASK ERROR: start failed: QEMU exited with code 1