Some nitpicks with Plasma
For a DE with so darn many options... It's really dumb not having a simple way of saving your configuration to restore on another machine or after some problem.
Doesn't even need to be a full backup, at least have it in parts, one for the system settings, another for the layouts, another for the themes, etc. Having to load 10 different files still would be faster than having to go trough every single option you've changed in your old config and redoing it.