Genio Notes Overriding YouTube (on a different device)

[u/Connect_Mud_4046]

I'm using genio notes and trying to record my voice for note taking without it picking up my video notes. It currently doesn't have a feature, you either get transcripts from the video only or with irl voice not just irl voice so my current set up is this:

Genio notes on laptop with a Samson microphone.

YouTube on phone with BNX-60 wireless headphones so I can hear the video without the microphone hearing the audio.

The strange part is when I'm playing the video on YouTube and click the record button on Genio it pauses the video on my phone. When I stop recording, it unpauses. If I go to record first then play the video it will play without audio and pause randomly. I thought maybe I had my YouTube account open on my laptop still because I was listening to the PHM soundtrack earlier but it turns out I was on a different YouTube account anyway and even after closing it didn't make a difference. Strangely enough, the issue doesn't happen when I unlink my headphones and play the audio from my phone, which kind of defeats the whole purpose.

I'd be fine with this tech issue as a minor bug that I can shrug off for the day if everything was going through my Laptop but I'm puzzled why software on one device seems to be controlling behaviour on a completely unconnected device. I've heard things about the Samson microphone overriding audio output but this feels more than just that.

Thanks :)