I too have the WF-1000XM4 and I only have the function to turn off the notification & voice guide that will stop making the sound that tells me what mode it is in. But it will happily scream in my ear that its either connected, almost empty or on / off. Regarding the bugs I experience on a regular basis: - Every off week the Speak-to-chat is somehow activated and than it drops me out of the music with the sound amplified. - The standby function does no longer work since a month or two and I find it empty every time I forget to either manually turn it off or put it in the charger - The multi device is so odd that I need to disconnect all devices in the surrounding and start connecting one by one - The dual bluetooth sometimes struggle to work with both Windows and Mac. - The connection with Windows was something I actually needed to Google as I couldnt get the quality to work, I somehow had to read somewhere that I needed to wait for ±1min till the actual device pops up in the list (Its registered as two seperate devices) but for this I actually blame Windows - Teams often refuses to play with the main device, but rather prefers the crappy audio system one.

To finish off and it's not a bug, but the microphone they advertise is so laughably bad that roughly 80% of the people couldnt hear me properly on the other end of the line. But reading the reviews I find myself one of the few in this situation.

I have the same headphones and the main issue I have with it is their multi-device support is pretty much broken for me. If I'm on a zoom call and I get a phone call on my other device it takes over the audio (as expected), but then if I decline the phone call the audio doesn't switch back to my zoom call (computer). I end up having to turn the headphones off and back on for them to reconnect, which actually takes a good 10-15 seconds at least. The Bose QC35 I had before handled multiple devices way better, unfortunately they just didn't sound as good as the Sony.