OK, I found it.
Make sure to update your packages using “sudo dnf update” or the Software app to get the latest kernel version, which includes further improvements for the latest Intel CPUs and for the Framework Laptop specifically.
But a small issue is here. It’s not dnf update but dnf upgrade. The dnf update works, but it is a deprecated alias of the upgrade.
$ man dnf
...
Upgrade Command
Command: upgrade
Aliases: up
Deprecated aliases: update, upgrade-to, update-to, localupdate
...