Type UX will do. Or Typography UX
Also I want you to challenge more your own idea, on another follow up post? Just imagining it likely could cause some legibility concerns if it’s really the real thing out there. What if you push it further than just for websites, how about try it really on app UX, a book app UX is super appropriate, challenge it more for like a book store UX, or try it for more wilder ideas like chat apps or 10ft TV app UX. I really think this could work at some areas.
Good idea tho 👍