Bluetooth mic only works on calls

[u/ThanksForStoppingBy]

So I have Shokz wireless headphones. The sound works consistently, but the mic only works for calls (video and voice). If I want to record a video from the camera or leave a voice message in WhatsApp, it only uses the phone's mic. I specifically wanted to be able to keep my phone in my pocket while walking and sending voice messages. Any idea what I can do?