I remember reading somewhere else that after the USB-C update from the Galaxy Store, the headphones sounded worse than before. So I postponed downloading it, even though I have never used the AKG headphones (I am very happy with my Buds+).
I wonder if there's any way you can uninstall the update?
I am guessing the Wireless Charging still works fine, so you can use that until a solution can be found.
Current phone : Samsung Galaxy Note 10+ 5G 512GB