In 8.3 we moved all of our stack to PipeWire 0.3. The problem is that Chromium/Chrome and its WebRTC still doesn't support PipeWire 0.3 (and as it uses dlopen() to open the PipeWire, then the RPM requires are not listing PipeWire 0.2 as a dependency) so we have to have PipeWire 0.2 available so the screen/window sharing works properly out of the box.
In short we need https://src.fedoraproject.org/rpms/xdg-desktop-portal/pull-request/2#c-c0dc818f9931edcc60d70f348ef152961bd51d5a-14 for RHEL 8.3.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (Moderate: GNOME security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.