I recently bought the Sony WH-1000XM4 and they sound really good, but whenever I try to use the mic, the stereo sound mutes itself - only using the low quality hands free sound profile is an option. The headphones are connected via Bluetooth to my Windows 10 PC (Bluetooth 5.0 adapter).
Googling and trying to solve this problem lead me to make this post because after reading many conflicting answers it's unclear to me if what I want is even possible.
This 4-year old article says it's simply a limitation of Bluetooth - but then says Bluetooth 5.0 might fix it. So my question would be: has it?
Then there's this even older post which had the same question I have. The top answer is that it is not possible without aptX-capable headphones and even then it's not a guaranteed. Well, the XM4 don't support aptX and instead have LDAC, which apparently is not supported by Windows.
Aside from this I found lots of more recent and conflicting answers, some claiming it is impossible to do with Bluetooth, others offering help and instructions how to fix it (which I have tried unsuccessfully).
So I guess what I'm asking boils down to two questions:
General question: Is it possible to have high quality audio and use your mic at the same time with a Bluetooth headset on Windows 10?
If the answer to #1 is not a universal "no", then what are the requirements for this to work? What do I have to look for (e.g. support of a certain codec) to determine if I have to return my XM4 and look for another pair of headphones?