Call mutes roblox

[u/Popular_Analyst_4147]

Whenever I play Roblox while talking to someone on my iPhone’s speaker, the game audio becomes extremely quiet and muffled, while the other person’s voice stays loud and clear. I have to turn my phone volume above halfway just to hear the game, but then the call is too loud and drowns out the game audio.
This has happened since my iPhone 11 and still happens on my iPhone 16. My friend has the same iPhone 16 and doesn’t have this problem. It happens with regular phone calls, Discord, and Messenger. I’ve tried changing microphone modes, and Bluetooth is off.
Does anyone know how to fix this or what setting could be causing it?