Davinci resolved is packaged for stable Distributions like CentOS (discontinued) or now RockyLinux, AlmaLinux or RHEL.
Fedora ships newer packages, the app is proprierary and cannot be recompiled, so it does not work.
Their website is also not a repository in the traditional sense. It is a website hosting files, but it does not work with dnf or rpm-ostree.
What you should not do now is install random outdated packages.
Instead, there are many solutions available:
- Pack the app into a Flatpak, where you get graphical permissions and more security
- Use it in a Podman/Distrobox/Toolbox container
Or try to use an editor with actual Linux support