I didn't even know I was bothered by how bad Skyrim's NPCs look during the split second they're opening doors, and now a modder's pointed it out the mod to fix has become essential
The way NPCs open doors in Skyrim has always been a bit silly. When they're crossing load screens they can't open them all the way—because then the other side would have to be rendered—and so they pop doors open a crack revealing a sliver of darkness, then fade out of existence like the guy in that one meme.
I remember looking for a mod to replace that with fuller animations back in the day and learning it would be completely impossible. (Deleting the door-opening animation altogether was on the table though...