[Pixel 9a / Android 16] Bluetooth issue (cannot use multimedia controls from a remote)

I've had an issue with my Pixel 9a since I bought it last week. I stream my music on a HiFi receiver (Denon RCD-M1 DAB to be exact. It is not high res, but supports A2DP and AAC).

I like to start an album and put my phone away. Then I control everything from the remote. Never had an issue, since it is a very basic task. But since I am on the Pixel, neither my remote nor the buttons on the receiver do anything to control music. I cannot play/pause/next track.

Tried all the AVRCP profile versions, rebooted, disabled HD Audio, and set the codec to SBC. Nothing worked.

Have you a fixe for this ? Or is this a known issue from Google ? This is really annoying and definitely a downgrade from my iPhone SE.