ADB devices block and USB devices not attached in DispVM

Hello,

Qubes 4.0

I use sys-USB to deal with the USB devices attached to my AppVM.
I can attach my Android phone to my DispVM with sys-USB and the Android phone reacts well: USB debugging on + RSA fingerprint of the DispVM.

The USB option are set to MTP

However, in terminal if I run
adb devices
List of devices attached

the list is empty.
In Files manager the Android phone also doesn’t show up.

I don’t find much information about this one except from 2016

Note: the solution with adb connect IP:port doesn’t work for me because I don’t have the ADB settings in debug options menu on my Android phone.

Perhaps there is an issue with the DispVM firewall and TCP port? The adb daemon start at
tcp:5037

Thank you,