I have a similar question. I am trying to set up network QoS policy for users running Zoom or Microsoft Teams meetings. Both companies publish information about how their client software will set DSCP values for Audio, Video and Signalling. However, when I run either app and use Wireshark to capture packets from my MacBook, the DSCP values are all set to zero.
Is there something within MacOS that needs to be enabled to trust the DSCP values that applications are setting? I've searched exhaustively and could find nothing.
rb