If Vulkan is selected for rendering in Doom I get an instant crash when starting with the following report:
If I select Vulkan for Strange Brigade it just crashes and never opens.
I did an AMD Custom Clean Install for 19.8.1.
Radeon 5700 XT AE
32gb ram, ASUS CrossHair 6 Hero bios 7306 (same behavior with beta bios 7302)