Red Hat Enterprise Linux (RHEL) version 8 will lose its full support at the end of May on May 31. You can easily discover if you've got affected devices with the audit we've included in our summary RHEL EOL blog post.
I've found that there is a bug on that script. If there is RHEL 8.10 systems in the results that the "Extended Update Support" column will show incorrect date. Because the script contains the following filter also:
When tblLinuxSystem.OSRelease Like '%8.1%' Then '2021-11-30'
We need to add space after 8.1 like that : '%8.1 %'