I wanted to point out a video error in the video listed below. I'm using Windows Mixed Reality. The video shows significant artifacts in 1920P and 2160P (and probably other compressed versions as well). They can be seen almost immediately and occur constantly. The video works fine at original 2700P, so its probably a down conversion error. Also, the audio does not correctly sync with the video. The audio is maybe 10-15 seconds ahead at a guess.
The video is Cum For A Slave by studio CzechVRFetish.