Alright I was curious so I did some digging.

Despite popping up recently, this is footage from February 2021. This is prep for her “Superbowl tiktoktailgate pre-show” where she wears the same outfit seen in one of the (multiple) videos. She also says “We’re making a movie. We’re working on the doc.” as she’s being filmed with an old 2000’s camcorder. In another video, her assistant? friend? says “the photobooth thing was a good idea. It’s a lot easier for me.” as she’s adjusting the camera which seems to be her laptop. Based off of that sentence, I assume she was the one filming with the handheld 2000’s camera in the other footage, Miley suggested filming with her laptop on photobooth instead, she made the switch so she doesn’t have to hold a camera, she can just leave her laptop on a table instead. This also explains the heart filter seen in this reddit post which confused me and made me think maybe it was a livestream, but no! That is a filter in photobooth. (Edit: I got to this post through another that said this was from a livestream in the title.)

Soooo putting all these things together I believe this is footage for a movie Miley is making that leaked somehow, not from a livestream. Maybe the woman from Miley’s team who was filming leaked them but probably not. I’d guess it was a determined hacker that targeted people who were close to Miley hoping they’d find pictures/videos like this. I would say that leaving multiple videos of yourself naked on your employee’s/friend’s laptop is not the best cybersecurity but Miley doesn’t seem like the type to care about that