I found the following BZ ticket which explains this situation...
https://bugzilla.redhat.com/show_bug.cgi?id=1634658
FreeCAD chose to use PySide over PyQt so this (and a couple of other
packages) are preventing me from switching it over to Qt5.
Is there anyone interested in getting PySide2 in Fedora and willing to
submit a Review Request? I'll volunteer to be the reviewer..
Thanks,
Richard