Ok so, as many of you know I used to be very much into the A series of Samsung phones, all my old Samsung phones were A series phones. On my old A9 2018 I had used dual audio once or twice but then it got removed I believe it was after a security update after the release of Android 10.
As you know I bought the S21 near the start of January after my A51 5g stopped working. Even after getting the S21 and reading refularly that dual audio was on flagship devices I had completely forgotten about it, until accidentely discovering it today. So glad I did tho, absolutely love it. Samsung whatever you do in next upgrades please do not remove the dual audio function that is one of my favourite functions on the S21, it easily comes under my top 3 favourite features of the S21.