Also using Bose QC 35’s, and only _today_ (oddly enough) I was getting incredibly annoyed at them for connecting to my phone and laptop (MacBook, in sleep mode, fwiw) and _not_ the Linux machine I had in front of me which was the “first profile” (the one that the device speaks about when powering on, “connecting to... <device name>“)

It seems mine can only be connected to two devices, and gets a bit weird when the secondary device wants to make sound but the primary device is already making sounds.

I have missed calls because of that.