Thank you for this! I'm going to use it as a handy checklist of things to configure, beyond what the RPMFusion wiki said to do.

I think a lot of these I will not need for my hardware, or wait to cross that bridge if I need to. But, one thing I thought was strange that the installer did not configure was hostname. So I'll definitely copy what you did:

hostnamectl set-hostname "$HOSTNAME_SHORT"  
hostnamectl set-hostname "$HOSTNAME_PRETTY" --pretty  

(might need sudo).

Thanks!