My Pixel is taking short video snippets from which you can then choose the best frame, and so far no other app than GP is able to handle those (as far as I know at least).
Can Immich work with those?

He gets regular vet checks and just drools whenever he is purring. Completely normal for him

Nah, he gets yearly dental checks. One quite recently.
He just drools when he is purring

The video is down unfortunately.