A quick update. Issue is solved by updating to 3.5.7 stable, and changing all the repo in /etc/pacman.conf from ‘rel’ to ‘main’, e.g., [holo-rel] to [holo-main].

Actually 3.5.5 also worked, but need to manually download linux-neptune-61-headers for kernel 6.1.52-valve7-1.

Well just personally believe keeping an older version of Steam OS would take less risk then using another OS on Steam Deck

I tried, and I found distrobox or other solution does not meet my need. And this post is for whoever like me. If distrobox could meet your need, please enjoy that way.