This is only a workaround using Discord (not for discord itself obviously). It could help a couple of people who need a mic for gaming or streaming occasionally and don't have another option.
It's free (save the data charges) and there is an extra benefit for using this method since you'll be taking advantage of Discord's noise cancellation software Krisp : (https://blog.discord.com/tune-into-discord-with-krisp-noise-suppression-on-ios-and-android-fcf5806967a0)
Requirements :
- Windows or MacOS on your PC
- Android or iOS on your Phone
- Internet Connection on Both
- Set up two separate Discord accounts that can call each other (One for your PC and one for your Phone)