I don’t mean the three styles provided by Notion fonts. I found there are templates with very beautiful artistic fonts for Notion, how do they do that?
This can be done using inline math, but it's a bit beyond me!
I just go to Canva and grab a font I like, type what I want it to say and just that instead! You can do a similar thing in Google Drawings as well (with the added bonus that you can't have a transparent background on Canva unless you're a Pro User, but you can on Google Drawings)
Danny Hatcher has done a few YT videos on inline math and so has A Nerdy Notioneer if you wanted to go down that route