The LXC hook scripts do not recognize the numbering scheme for Stream releases. There is a simple fix:
root@pve:~# pveversion
pve-manager/6.2-12/b287dd27 (running kernel: 5.4.65-1-pve)
root@pve:~# diff -u /usr/share/perl5/PVE/LXC/Setup/CentOS.pm{.orig,}
---...