can’t even do video playback on VLC.

I remember back in the day when I downloaded the first divx file my K6-400 couldn’t smoothly play… I had been so used to thinking of that as a powerhouse coming from my Pentium 60, which was the first one I ran Linux on.

You can use one of a few ways to use the TPM to auto decrypt on boot without passphrase. Systemd cryptenroll is my favorite.

Because it says to do so?

Proxmox uses Debian as the OS and for several scenarios it says do Debian to get that done and just add the proxmox software. It’s managing qemu kvm on a deb managed kernel