GTAV works better with AMDVLK, as one of the very few games out there. You could give that a shot, but be aware that AMDVLK often gets selected as default, so having AMD_VULKAN_ICD=RADV in your global Env. Variables are a good idea.

And then launching GTAV with AMD_VULKAN_ICD=AMDVLK %command%.

That was not Linux Mint but Pop! OS.