Earlier quoted context omitted.
Sure you can look things up but it would be nice to look at this evangelism site and tell at a glance that Bluetooth isn’t supported everywhere the way playing a sound is.
To clarify what you're actually trying to say: Access to the low level Bluetooth device API is not as pervasively supported as audio output is. Quite clearly you can play audio to a bluetooth device in a PWA everywhere. And that kind of ambiguity is why you need to be using a rigorous source like caniuse and not just looking at summary statements for this kind of information.
I didn’t actually mean to compare BT vs BT audio in my original post, I just picked an example every browser will let you do. I hadn’t considered the crossover until I saw your reply.