Bluetooth headset on Windows 10: is it possible using mic and stereo audio at the same time (Sony WH-1000XM4)?

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? Th

Question by Alex on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.