I've recently upgraded my system to rawhide (selinux-policy-3.14.5-24.fc32.noarch) and I had to change selinux to permissive mode to get gdm/gnome-shell to work because of an issue with account-manager (bug 1801117) while looking at audit.log after a fresh boot I also noticed some other selinux denials: type=AVC msg=audit(1581328733.904:94): avc: denied { setsched } for pid=1152 comm="ModemManager" scontext=system_u:system_r:modemmanager_t:s0 tcontext=system_u:system_r:modemmanager_t:s0 tclass=process permissive=1
*** This bug has been marked as a duplicate of bug 1795524 ***