A bit aged Huawei HW, we had a user once which had similar HW and (from top of my head) similar problem, but no real conclusion even after lots of combined research.
The two workarounds we wound with them were:
* use an older installation media, Proxmox VE 5.4 ISO worked for them, they just immediately upgraded afterwards to latest 6.x, which on an empty machine is as easy and straightforward as a longer normal upgrade.
* install
Proxmox VE on top on Debian, as long as you do not want to use ZFS as root filesystem that would be a valid workaround.