Jan 12, 2021
I have the same issue, so txs. for the hint on using an external USB transciever.
Have you tried a USB-C dongle?, e.g. this one: https://www.amazon.co.uk/Logilink-Bluetooth-Adapter-Software-BlueSoleil/dp/B07L4VFBJ4/ref=sr_1_3?dch...
I have just ordered one and hopefully that will sort the problem, so it'll work while still being portable.
Well, the Logilink USB dongle didn't work on the Mac, but I installed a Trust Bluetooth dongle instead and that solver the problem. The headset is now fully functional 🙂