The easiest step into this world is KDE. It has a store for users to share global themes, color themes, even sddm animations.
You can use kwin rules to send certain apps to certain desktops, start shaded, all sorts of fun stuff.
And then you can throw a tiling manager on top of that. If you want to use the control panel, you can install bismuth. If you’re comfortable editing text files, awesome or i3 (but I have yet to go that far).
If you really want to go for it, hyperland looks incredible, but it is a lot of up front work.