I guess it’s even perfectly OK if the animation starts after you click on the individual gif (as it’s with videos).
The only thing I would really try to prevent is a gallery grid view that is constantly flashing and jumping just because one of the apps came preinstalled with tons of animated gifs that have been discovered by tracker in some obscure sub directory.
Tracker is quite capable of finding stuff in the most unusual of places so it’s not always a conscious decision by the user on what ends up in the gallery on SFOS.