I have a running PVE7.4 on a Dell R820 which boots & runs via a mirrored pair of 10k SAS drives on HBA(IT mode).
rpool/ROOT/pve-1 on / type zfs (rw,relatime,xattr,noacl)
I have a few LXC's & VM's which are on a PCIe+NVMe RaidZ1 (3+1) array. (/z1n/CTs /z1n/VMs /z1n/subvol-2001-disk-0 etc)
z1n...