The most popular single board is the Raspberry Pi 4 by far. And popularity translates into support, so anything can be installed on the RPI: Ubuntu, Arch Linux, Chromium OS, and even Android or Windows. There was the best cast of actors, but one was missing, the quintessential GNOME operating system, the one with the name of a hat. From the looks of it, this will change after the summer, as Fedora will officially support the Raspberry Pi 4.
So we can read it this proposal, where the first point stands out officially support the Raspberry Pi 4. According to the proposal, they had been evaluating the possibility for a long time, and it has not been until now, when they can already implement graphics acceleration, that they have decided to make it a reality.
With key features already available, Fedora will be usable on RPI4
Work around the Raspberry Pi 4 has been going on for several years, but we've never officially supported it due to the lack of accelerated graphics and other key features. Some of us have led the push to get accelerated graphics working over the upstream line, so it now makes sense to enable this in Fedora and make support for the Raspberry Pi 4 more official.
Fedora already supported other brand boards like the Raspberry Pi 3 and the Zero2W, but not the last one that was released in 2019. It didn't because they hadn't fixed what they call "key features", but these have already reached the Upstream version, so support for the Raspberry Pi 4 should arrive alongside Fedora 37.
Keep in mind that this is a proposal, so they still have to do it, but also that Fedora 37 is still about three months away and more than likely they will. The latest version is v36, and it arrived in May with GNOME 42 and Linux 5.17, among other new features.