I recently moved Nextcloud and Gitea from Containers on a Debian VM to Alpine LXCs running Alpine’s packages. I’ve never had Nextcloud’s web interface so snappy and my resource usage for both is next to 0. If you’re running Proxmox I’d highly recommend trying out Alpine LXCs if they package your services.
I used to use Alpine containers but I’ve since standardize on Debian completely. Proxmox is Debian, my VMs run Debian, my LXCs run Debian, my VPSs run Debian, Raspian on my RPi is Debian, Armbian on my Odroid is Debian, etc, etc.
The benefit of running the same distribution on all my servers no matter where or how they’re hosted can’t be overstated.
Less mental overhead remembering different commands or config paths, same software on everything, etc. It’s been fantastic and Debian has always been rock solid for me.