If you are more interested in running apps than having a NAS, I recommend trying CasaOS. TrueNAS is great, but I found CasaOS significantly more straightforward, especially when it comes to smb shares (it’s like two clicks).
Also TrueNAS uses ZFS which is good for what it is, but means you basically need a machine running TrueNAS to read/write the drives in case something goes wrong.