Problem with Mono Audio Microphone in the Background

Hi, I'm not a developer. I ask for your help for a problem with several IPhones. Any game running in IOS and which activates the MIC, (in-game voice chat) the game and App's audio in the background, automatically (WITH MIC ON) switches from stereo to mono. Impairing the in-game experience! Is there a way to develop an App in the background that fixes this problem? Multiple users with same issue regardless of IOS version and iPhone model!

In IOS 14.0.8 the solution was to use simultaneously with (MIC on in-game) a voice recorder application in the background! On IOS 15.0.2 this method stopped working! In IOS 15.0.2 does not allow 2 MIC’s working at the same time! You activate the MIC and IOS understands it as a call and changes the audio of all APPS to MONO! In games, for example: COD Mobile, PUBG and Free Fire the sound is mono and not Stereo! unplayable!

I'm facing same issue

Problem with Mono Audio Microphone in the Background
 
 
Q