It's not packaged for Fedora, as simple as that.
Unfortunately there's no Flatpak either. You can try asking in the Matrix channel: #alpaka:kde.org
It's not being packaged by distros yet. You need to build from source.
On that note I wonder why Windows devs package software ASAP and Linux devs sometimes never do. Often the same who do the former also do the latter.
I recommend the flatpak version. It's still a little buggy as an app, and it's missing a few features, but it'll be rad when it's done.
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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