I've been using a Steelseries Arctis 7P Wireless headset across Chromebooks, Pixel 5 and Galaxy Fold3 with no issue for over a year now. However, when I try to use them on my new Tab S8 Ultra via the USB-C Dongle, I'm only getting audio out of the left side. This only happens with the Tab, every other device has no issue with it. The Steelseries website states in the FAQ:
Most Modern USB-C Phones do work, but some older Samsung Galaxy phones (Galaxy Note10 or earlier) only support audio and not voice functionality via USB-C due to Samsung firmware not being updated. You can still listen to games, music, and videos, but will not be able to use the headset mic for calls or voice chat.
I would have assumed that the TabS8 wouldn't be running out of date firmware but its the only explaination I can find why a £900 tablet is not working wiuth a perfectly functional headset.