The discussion over on blender devtalk is that they now have cycles working on Metal (including AMD GPUs) and now they can start to optimise.

https://devtalk.blender.org/t/cycles-apple-metal-device-feed...

I’ve already seen a significant CPU improvement on my 2019 16” and I can now use my 5500M to render. My PC’s RTX 2080 Super is significantly faster but it draws more than 200W.

This indeed is great progress!