I have tried with boat,oneplus buds pro, jabra 65t and multiple other bluetooth devices connected to my windows 10 laptop.
With system inbuilt speakers and mike, I am able to use a screen recorder like camtasia or faststone capture to reacord an ongoing teams meeting and save the recording.It works fine, both my voice and others in the meeting are audible in the recording.
But, if I try the same with bluetooth devices, system sounds and my voice is recorded but not the others in the meeting. Insted only noise is being recorded.
If I record only screen then it works but if I try to record teams or any other meeting with bluetooth, it doesn't record.