Previous teasers or full on advertisements for Marvel stuff based on movies have had the movie’s logo in the teaser somewhere. Not the case every single time, but usually.
Avengers logo way small down there in the right corner.
If this PF was from an Avengers movie, Civil War or WandaVision it would have said “Scarlet Witch” and had the specific movie/TV logo on it. Probably. So I’m thinking this is comic.
Also the font they used is way closer to the comic font. They probably just used a similar font and typed the name over the stock photo as opposed to having and using an actual Scarlet Witch logo provided from Marvel.