Play videos in more than one window simultaneously

[Kalrkloss]

Is your feature request related to a problem? Please describe.
While playing a video/stream in one window: when you start a video in a second window, the video in the first windows stops.

Describe the solution you'd like
The possibility to play more than one video at once, ideally three videos playing simultaneously in three browser windows.

Additional context
It happened once on my headset (Pico 4), that a video in one window kept playing when I started one in a second window, so I think limiting playback to one video at the time isn't a technical limit, but was a design choice. I wasn't able to repeat that behaviour, though.
If so, is there a place in the code where I can change that, so that more than one video can be played at the same time?