This isn’t really driver related. It is the Wayland compositor’s job to properly handle multiple GPUs, which is lacking in some (a very popular, Wayland library that lacks proper multi-GPU support is wlroots) compositors. Vulkan drivers and DRM are already enough to properly handle multiple GPUs. I guess Wayland implementers just haven’t cared enough about the issue, or maybe are figuring out a “perfect” way to address it (a la 3 year long pull request on wayland-protocols repo incoming)
This isn’t really driver related. It is the Wayland compositor’s job to properly handle multiple GPUs, which is lacking in some (a very popular, Wayland library that lacks proper multi-GPU support is wlroots) compositors. Vulkan drivers and DRM are already enough to properly handle multiple GPUs. I guess Wayland implementers just haven’t cared enough about the issue, or maybe are figuring out a “perfect” way to address it (a la 3 year long pull request on wayland-protocols repo incoming)