While many hoped that with the adoption of Vulkan it would lead to avoiding driver-specific checks/workarounds, that’s still not been the case to workaround various driver bugs and other issues. The RADV ACO compiler back-end has resorted to altering its version string in order to obtain 2~5% higher performance in Feral’s latest Linux game release…

Source: Phoronix – RADV ACO Adds A Version Hack/Workaround For An Extra 2~5% Boost In SotTR