This way, it shows up as "Compositor" in Sysprof instead of "t:XYZ". https://gitlab.gnome.org/GNOME/mutter/merge_requests/197
This exposes the /org/gnome/Sysprof3/Profiler object inside Mutter to allow initiating a Sysprof capture. https://gitlab.gnome.org/GNOME/mutter/merge_requests/197