How does presentation mode work and how to set it up?

asynts

I got a video that I want to automatically start when the user puts on the headset.
If they take of the headset, the video should stop playing.
If another user puts on the headset, the video should start from the beginning.

My understanding is, that this can be achieved with the "presentation mode" in the global settings.

However, when I turned on the "presentation mode" it didn't quite work.
There was clearly a change in the loop options as expected, but the automatic playback didn't work.

I am using a Quest 2.

Thanks!