This thread is about a year old, but the issue you described regarding microphone recording on Android 12 remains relevant. As of my last knowledge update in January 2022, Android's restrictions on background microphone access were in place due to security considerations, especially starting...
Yes, it seems quite possible to do that. But I know how to do it through the local cloud. I've been using Upload and Share Your Files for a few years now, it's really handy stuff. You can easily upload absolutely any size file to that cloud. And recently a friend of mine showed me how to change...