GoKawiilAndroid's Absolute Bluetooth Volume feature can be disabled via developer options
Android phones running version 6.0 or later include a built-in feature called Absolute Bluetooth Volume, which links your phone's volume buttons directly to connected Bluetooth speakers or headphones. When the phone's volume scale doesn't match a Bluetooth device's internal amplification, the sync can glitch, causing unresponsive buttons followed by sudden full-volume blasts. Android includes a native toggle to turn this feature off without installing extra apps.