While TrueNAS is great I found it to be significantly more NAS-oriented than a general “home server”. It’s certainly capable just very into the weeds with permissions, users, groups, etc. It’s not very noob friendly. If you aren’t primarily dealing with a ton of data, you might want to look into something like CasaOS or Homarr which make sharing data on the network very “set it and forget it” and are more focused on apps.

Also recommendations include PiHole, Immich, Qbittorrent, Plex (or Jellyfin) obviously, SyncThing, Duplicati, Home Assistant (although you probably want to run that in a VM) and Tailscale and NGINX proxy manager for accessing outside the house.