In Asahi Lina’s guest post[1] on the Asahi Linux blog she mentions “If you want to support my work, you can donate to marcan’s Asahi Linux support fund on GitHub Sponsors or Patreon, which helps me out too!”

So yes, donating to Marcan helps driver development too.

[1] https://asahilinux.org/2023/03/road-to-vulkan/