Autopause! Yes, it turns off if you put the application on your phone, but when you reconnect to the device, the settings can simply be reset. I recommend that you immediately cut it down and periodically make sure that it never turns on, because living with it is just hell. Yes, autopause rarely forgets that I forbade it from working, but nevertheless, during long-term operation, you will encounter this many times.
phone mode. But it can no longer be turned off even for a while. What is phone mode? This is such a thing that turns your senheisers into headphones from a fixed price for 27, and also, as a highlight, drowns you out with an unbearable hum. It is physically hard to stay in phone mode for more than two seconds, so you just have to take off the headphones from your head. This "feature" appears when you go to a rally in zoom or tims, when someone calls you in a telegram, when your microphone is turned on in the browser, as well as in many other less obvious scenarios. Yes, in a small part of the software this can be fixed by switching the output device back and forth, or through self-written crutches, but not for long. Phone mode can overtake you at the most unexpected moment.
There is also a less important, but no less annoying problem of switching the codec to the worst one at a random moment, which affects the sound quality. For 1.5 years, I still haven’t figured out if this switch is triggering something, or if the headphones are just going crazy. Yes, on nix systems you can force the use of the AptX codec, but I’m even wondering, but what about Windows users? Probably not, because they do not have such an opportunity.
Simultaneous work with two devices is implemented super crookedly.
A rarer bug - when you connect a new device, the headphones can forget the old ones, you need to re-pair.