Since this is a Sea Islands (CIK) GPU (GCN 2.0), by default it works on older driver, but you can switch it to newer one, with Vulkan support and other features:
- make sure you’ve got the driver installed:
dnf in xorg-x11-drv-amdgpu vulkan-tools mesa-vulkan-drivers - add undermentioned kernel parameters
grubby --update-kernel=ALL --args="radeon.cik_support=0 amdgpu.cik_support=1" - reboot
If you still have issues, post here output of cat /proc/cmdline and glxinfo -B
And here’s more about why this driver isn’t yet set as the default one Enabling AMDGPU by default for SI & CIK (#1776) · Issues · drm / amd · GitLab
This, most probably, won’t work on Fedora kernels, they are too new.