Should I Use Docker?

So I understand Docker is a great way to stop certain services and have them isolated from each other.

But my Linux system will be the system.

It's only going to run Plex, a few other related bits, Pihole and a torrent program to keep sharing Linux distros and such.

None of it particularly needs to be isolated from each other so should I run these things in Docker or just as normal programs on the system?