BLE is not usually used for streaming music. Normally notifications, basic data updates. Not continuous streams.When I go for a run, I pair AirPods with Apple Watch. AirPods Pro 2 has Bluetooth 5.3, which can improve the battery life and connectivity with Apple Watch Series 8, Ultra, and iPhone 14 series.
Have a very good look at the Applications section not just the top paragraph.
Bluetooth Low Energy - Wikipedia
Bluetooth 5.2/5.3 should’ve brought hi-Res audio to the AirPOds Pro yet didn’t. A MAJOR miss by Apple and unsure why. Maybe it’s coming soon or early next year?!