Android 11 - Audio on Pixel 3a wired headphones very quiet I've just updated my Pixel 3a to Android 11 beta

and listening audio from Youtube using the original device's headphones
I noticed that, even with media volume set to maximum,
the sound is much more quieter than before.
I tried to disable absolute volume, w/o any result.
Any workaround? (I'm not gonna root my phone)
I'm a bit late to the party but I have the same issue. I installed a volume booster and it seems to be doing the trick just fine. There are a number of them on google play, not sure what the best is.