Geometry glitches in some games

https://youtu.be/2JVWXf7mnNo

I'm getting geometry glitches similar to this in a few different titles, no game engine in common. The triangles in question seem to be anchored to geometry, during other gameplay I'll see it attached to the racetrack (in this title) almost as if it's losing vertex data and using default coordinates for something. However, this isn't consistent across all games, but is consistent (and repeatable, same issues stuck to the same bits of geometry) in the games where it occurs.

Does this seem like a driver issue to anyone else? I'm just kinda baffled as it's not any of the normal "VRAM FAILING" red flags that you'd normally see, but it's clearly not behaving as intended.