Comment # 2 on bug 1142415 from Stasiek Michalski

Keep in mind we can't recommend libvulkan_radeon-32bit on systems which have
only intel and libvulkan_intel-32bit on amd only systems, doing supplements
with currently installed driver packages in vendor libvulkan packages would
probably work out better.

This is an issue for steamvr, steam and proton.