Looking at the release notes, it's still the Linux kernel 4.18, and for the upcoming 9.1 it is only 5.14. Are there any RHOS-like distros with recent kernels like 5.19 and 6+?
ELRepo has upstream kernels for all Enterprise Linux compatibles.
Also, the Rocky Linux SIG/Kernel group may even provide an alternative ISO(s) with those upstream kernels at periodic intervals. If you (or anyone else) is interested in helping with that, jump into https://chat.rockylinux.org and join that special interest group.
SHAMELESS PLUG: CIQ (my company) also has an upstream optimized kernel that we support provided via Mountain (our operating system delivery platform).
It's worth noting that Red Hat backports newer hardware support and some functionality to its new kernels, so in practice it is not as out of date as the version may imply.