I will argue from experience that Homeassistant runs pretty damn good on a pi using an SSD. They have an image specifically for HA as well.

All the tiny micro server content is great from sth.

This is fantastic. Sync was the best and I tried multiple apps but kept coming back.

I found jellyfin easier to setup then plex and the dashboard is much nicer. I also love the quick connect option when logging into new devices.