Airpod max keeps disconnecting

I took my brothers airpod maxes he got for christmas 2022. They work really good when theyre connected, but they CONSTANTLY disconnect. I cant even get through one song without them disconnecting or the right side will stop working. I have already tried all of the things: resetting them, forgetting device, charging them, cleaning them. Idk how to fix them because I really like them when they do work. But its so annoying how frequently they disconnect/right side stops working