Have you tried Krita?
Viewing post in Vector portraits
Yes you are right, it is raster. However, if you go to the Layer menu & click the "+" dropdown you can add Vector layers. I've only dabbled with Krita as I'm more of a Photoshop, Illustrator, Gimp & Aseprite user these days. Give it a go, it's powerful & does have animations covered too... oh & it's free & open source :)