Chrome shows other YouTube subtitle language than Edge

I have a YouTube video with subtitling files in Dutch and English. I want to show it to my audience in Dutch in a Jitsi meeting. On the computer where I start YouTube I can select the subtitle language.

The computer of another participant has a Dutch Windows system and the participant selected Dutch as language in Jitsi. I find no way to change the YouTube playback settings in Jitsi on this computer.

If this participant enters the meeting with Chrome subtitling is in English, if she enters with Edge subtitling is in Dutch. This does not change when language settings in the initiating computer is changed.

I use a 3rd party hosting service for Jitsi.

Does anybody have a clue how to ensure that all participants get Dutch, irrespective of the browser?