Yeah this almost looks like something tontarotaro might make in 2D.
But sum is a bit different, he mainly does eeveelution animations, and a lot of it is sus... not really explicit but definitely some implications of 'stuff'
Scanning for threats lmao, that's a good way to put.
But yeah sum's animation was always sorta like that, it just got progressively more sus with newer videos, if you take away the implications the animation style is really cute itself though