Which sadly does not work very reliably. At least on my end the selection changes back to default every few days. I reported this issue over the Apple Feedback app already…

Yes, that’s my experience too. I have to choose during each call by opening the control centre and choosing the audio settings option for the ongoing call.

This does seem to let me enable voice isolation though, which seems to work very well.

Aw think it got worse on 26.1! Was perfect before.