How to Customize AirPods Tap Controls
You can change how AirPods respond when you double-tap on them while they’re in your ears. For example, if you want to be able to double-tap on the left AirPod to summon Siri, and double-tap on the right AirPod to play or pause audio, you can configure that easily.
There are a variety of double-tap customizations available for AirPods, including Siri, play/pause/stop audio, skip track, and go back a track, and you can set those double-tap controls separately for both the Left and Right AirPod.