When I attempt to install v8.5, I get a worrisome complaint:
# dnf update
Last metadata expiration check: 3:10:07 ago on Sat 20 Nov 2021 07:33:25 AM EST.
Error:
Problem: cannot install the best update candidate for package kde-gtk-config-5.18.4-1.el8.x86_64
- nothing provides breeze-gtk-common needed by kde-gtk-config-5.22.5-1.el8.x86_64
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
I started with v8.4 + KDEPlasma last summer, and I’ve been updating as prompted.
Web sources report issues with EPEL and/or other various repos. It all sounds risky.
I use this system every day, it’s important that I not break it.
When I tested this I did install breeze-gtk-common from raven extras. I removed that repo once it was installed. It may fix your install. The only other think that I suggest is backup your data and do a fresh install with workstation.