Auto-start Shorts and videos having portrait thumbnail on portrait full screen

Checklist

[X] I made sure that there are no existing issues - open or closed - which I could contribute my information to.
[X] I have read the FAQ and my problem isn't listed.
[X] I'm aware that this is a request for NewPipe itself and that requests for adding a new service need to be made at NewPipeExtractor.
[X] I have taken the time to fill in all the required details. I understand that the feature request will be dismissed otherwise.
[X] This issue contains only one feature request.
[X] I have read and understood the contribution guidelines.

Feature description

It's obvious that Shorts and videos having portrait thumbnail are expected to be played on portrait player. However, if Start main player on full screen is enabled, player tends to rotate automatically regardless of types of videos. Such a hassle could be easily avoided.

Why do you want this feature?

Enabling Start main player on full screen lets you to start full screen without the need to rotate the device. However, all videos tend to get started on landscape full screen at first and this is a little disturbing.

Additional information

No response

TeamNewPipe / NewPipe