I did install bridge for testing. Everything works as expected, but when I uninstalled it after my tests.
The volume output of my headphone were a bit low compare to before.
I remember that I reduce it via the roon during my test.
So I install roon bridge and put back to 100% volume uninstall it again it.
And it solve my problem.
I guess that during the uninstall script, nothing put back the volume to 100% and it should.
I’m using ubuntu 22.04