Verified with microcode_ctl-20191115-4.20200609.1.el8_2
The failed tasks are due to blacklisted CPUs which means they are not running the newest microcode revision. In other words, the failures are expected and a good thing since it means the blacklist is working. The Skylake-U/Y system freezes on boot if the microcode update is forced which proves the blacklist is necessary.
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, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.