Why do only 4 Distros have their own font? (Ubuntu, Pi OS, openSUSE, Red Hat Enterprise)

I'm a huge Ubuntu fan - having their own font+icons+theme+wallpaper makes it feel really cohesive. But I was wondering what options there are for people who don't like Ubuntu but still want that cohesion.

Of course many distros have a specific font but it's not one that was created specifically for that desktop environment.

And of course out of the 4 from my title, only one is a general purpose consumer OS.

So why don't more distros create/commission their own font?

Historical Note

KDE used to have a font - Oxygen

Gnome has a font but it's really just Inter with a certain character set chosen