And ricers.
Yup. You'll have the folks who spend dozens of hours on just their Conky config file. They'll spend aching hours customizing their icons just so things are cohesive to them.
I'm a bit lazy to look right now but I'm pretty sure there's an r/unixporn (not pornographic) sub-reddit that has countless examples of people like this. There is, after all, a reason you can follow along with the Linux From Scratch guidelines.
I'm no longer into tweaking. All I really care about is a dark theme. I might tweak a few more things. I may pick my icons - but I'm unlikely to download and install my own icons. I'll likely just pick from what's available in the default configurations.
I barely change my desktop. I don't actually see my desktop for any significant length of time. I tend to use the same old BMW picture as my background and that's literally all I'll change. A desktop background image isn't important for me because I seldom see it. I don't even have icons/shortcuts on the desktop.