what does this consist of? Well, it’s easy, whenever you install a new distribution of Linux, don’t customise anything, nothing please!! Out of the box experience, you may install software but that’s all. And if you are already using a customised distro, then delete the .config file and reboot, but please be careful and check your distribution wiki before doing that o.o
I’m very confused about what OP considers customization. My only experience has been setting up my home server so far, so maybe I’ll be compelled to do more “customizing” when I make the switch on my PCs.
Does installing a GUI on Ubuntu Server already break that rule? Or is it a success because it’s only software? It’s definitely not “out of the box”.