Docker won’t make much sense if you don’t understand the underlying Linux systems and/or applications.

It’s similar with Wine and Bottles. If you don’t get what’s in the bottle, then running the bottle won’t make sense.

Find tasks that run on the native OS. learn to manage Linux itself. skip containers, Snap, virtual machines, etc.

try running a web server using httpd or something.

I’m surprised no one’s mentioned the security implications. Mounting with nosuid and nodev options can undermine rootkit or privileged escalation exploits.