In short - there are no binaries and it's relatively hard to compile these manually, so I recommend to wait until the Linux distributions picks these projects up. This usually takes around 6 to 12 months.
Holy cow, that was a LOL from hell. Are you serious? 6-12 months is the biggest tease. "Here's this really cool thing, but maybe, if you're lucky, you'll be able to use it in a year or so." That's the quarter super glued to the floor kind of frustrating.
It's not super glued to the floor. It's on a train, on its way to your station. How far away your station is from the train entirely depends on the length of the release cycle of your Linux distribution, and is completely outwith the control of this developer. That's how Linux distros work. If you want it sooner you can always use a rolling release, such as Manjaro.
The new X server is already in Debian experimental [0], with a bit of luck it trickles down to unstable just in time for Ubuntu to pick it up for the 22.04 release.