After updading to Android 10 on my note 9, I don't hear any sound on my USB speakers unless I push the volume slider to the red zone, and even there, I hardly hear the audio.
compared to android 9 or even my ipad pro, I'd say that pushing the volume on my note 9 at 100% is equivalent to 50% volume on the same phone with android 9.
It's not an app problem as the issue appear with all my apps.
The same USB C cable and speakers work great on my computers (windows, MacOS) and on my iPad pro.
Is there a setting I need to change?
I just went to a Samsung customer center and they told me it doesn't look like a problem introducted by Samsung but by Android (sic). As a consequence, they cannot help me (eventhough my phone still has 1 a year warranty left)
I wonder, is it even possible to return to Android 9?
I frankly don't care about android 10, I don't see anything that I wanted or wished for, I'd rather go back to android 9