To be honest, those never really worked reliably. i don’t know where really lies the issue but loading a bunch of file and some file can freeze, make the app unresponsible that only a kill can resolve.
Is it a gstreamer issue? Rhythmbox has always looked bloated and never able to do what a simple audacious can do with the same file collection.

Regarding RHEL, they are pushing ITs to the cloud and not their own, I mean, I will do the necessary to not promote, support their products.