Universal themes

I am coming over from Manjaro where there was an easy way to switch between theme packages that would automatically change the theme of icons, windows, plasma, etc. but I can't seem to find the same here. I figured out how to do everything individually but I figured it worth asking if there was a way to do them all en masse or do they, indeed, have to be done individually if I want to change something?

That is Global themes, in KDE settings.

(I presume that you are using KDE, because you didn't mention any)