Yeah. Pretty much when I hold my iPhone 6s Plus to my ear for any of those apps and talk that way they can hear me fine. When I put them on speaker they stop being able to hear me. But whenever I FaceTime people it works fine. And whenever I have someone on speaker on a regular phone call, it also works fine. I've restarted my phone and tested all of the microphones with videos and voice memo. My mic doesn't seem to be the issue here.
Read more: Other party can't hear me when I have them on speaker on messenger, discord, and Skype?