Manjaro and Antergos are just asking for trouble. If you want Arch, use Arch. Otherwise Ubuntu, Debian, Linux Mint, and Fedora are popular.
I don’t think the full Radeon suite is on Linux but there are tools for screen recording like simple screen recorder and OBS.
There is lots of 3rd party software available on all of these distros in their respective package managers, but Ubuntu has the advantage with PPAs allowing for more 3rd party repos to be easily added to the package manager.
HDR support is still very early/basic right now: https://wiki.archlinux.org/title/HDR_monitor_support
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