We are less than 50 days away from the final version of #Plasma6.
Along with Frameworks 6 and KDE Gear 24.02, the Megarelaease on the 28th of February will be one of the biggest and more complex upgrades in KDE's history.
One more RC will be released on the 31st of January and then it will be (hopefully) clear sailing until the final release.
Please note that release candidates, although often called "sneak peeks", are still work in progress and must be installed and used with extreme care. They will contain bugs, some of which may still be critical. Do not use this software in production environments. Use for testing only.
Fedora has KDE 6 in a testing branch I think. Would be good if you're willing to test it because they're looking for people to go through user test scenarios.