I’ve ran multiple containers on a Pi 3 before “upgrading” to a Pi 4. Yes not even a Pi 5. Sure it’s not rapid and drags it’s heels at times but for the most part it’s great for hosting stuff for my household.
Home assistant, Plex, Syncthing, Wireguard, Ad Guard, nginx, nginx proxy manager, duckdns, mongodb and unifi network appliance. I was also running Jellyfin along side Plex but it keeps causing the Pi to lock up.
I did it a week ago and it was just a case of passing through the video card. I came across a lot of guides and they were all in the CLI. I assume things have improved or maybe it differs per card. I was just using onboard graphics from an N100 CPU.