What exactly do you mean by “this”? Linux runs fine on Ryzen 3000, provided you have either a new enough BIOS (AGESA 1.0.0.3ABB or higher), or a distribution old enough (e.g. Debian 9, Ubuntu 18.4, Linux Mint 19) or new enough (e.g. Debian 10, Arch, Manjaro 18.1-rc), to ship an unaffected systemd. If your board’s BIOS really doesn’t have the fix yet, there should be patched ISOs out there for Fedora.