If the user doesn't create an account during the installer and instead creates one in gnome-initial-setup, sometimes following gnome-initial-setup the login screen will show instead of the logged in user.
This got fixed upstream here:
Would be good to get this fixed in 8.1 as well.
*** Bug 1692547 has been marked as a duplicate of this bug. ***
this got fixed for "free" when I fixed bug 1618481 so moving to MODIFIED
I just installed RHEL-8.3.0-20200825.0 and you can't install unless you setup an initial user account.
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.