The Vulkan API is being improved to provide more reliable support for older AMD Polaris GPUs through the Mesa RADV driver.

Vulkan API Improvements Coming For The AMD Polaris GPUs With Mesa RADV Timur Kristóf of Valve's Linux graphics team has done an incredible job improving older AMD GPU support under Linux with migrating GCN 1.0/1.1 era hardware to the modern AMDGPU kernel driver and an assortment of other improvements for various older Radeon GPUs. The newest work is on enhancing the RADV Vulkan driver support for old Radeon RX 400/500 "Polaris" graphics cards... https://www.phoronix.com/news/More-Reliable-Vulkan-Polaris

Vulkan API Improvements Coming For The AMD Polaris GPUs With Mesa RADV https://www.phoronix.com/news/More-Reliable-Vulkan-Polaris