Yes I have. I often watch video tutorials at 4X speed (chrome used to cut off audio after that so I couldn't go over that limit).
Nowadays i even watch movies at 1.5x speed and it looks very normal to me. Once you get used to it you can't have it any other way (especially documentaries and slow movies)
It it's not uncommon to habitually listen to podcasts at that speed, and after a while you get used to it and everything else just sounds slow. Not exactly intentional, rather a side effect of something that made sense by itself.
This is fine for podcasts, lectures and books where the purpose is to take in information. Timing in movies and TV shows is important; silences and slow pans are placed there for a reason. I can't imagine why one would watch a movie or TV show at 1.5x when the purpose isn't to take in information, but to enjoy artwork.
Nowadays i even watch movies at 1.5x speed and it looks very normal to me. Once you get used to it you can't have it any other way (especially documentaries and slow movies)