Manjaro XFCE with linux-hardened kernel is running great for me with libvirt / vfio & MSI Rx 570 8gb / MSI Rx 560 (host).
As long as the Windows 10 VM is closed down cleanly I don’t get a reset bug & I use these scripts.
For Radeon 7 you need to make sure the GPU has a UEFI BIOS
An AMD gpu for the host will give you less headaches.