I think apple silicon will work with AMD in the future and AMD will be the GPU supplier for high-end workstations as the Mac Pro and iMac (in some configuration

I think apple silicon will work with AMD in the future and AMD will be the GPU supplier for high-end workstations as the Mac Pro and iMac (in some configurations). As impressive as the M1 being on-par or even better as Intel CPUs, I don't think Apple can pull the same with a GPU (developing and relesing a high-end GPU that is on-par with AMD/Nvidia performance wise). While I think they could achieve that given their engineering resources, I don't see a ROI for them on that matter. They will focus on low- and mid-range, power-efficient iGPUs to support everyday usage, but the high-end segment is not important for their overall business. The market for Mac Pro is just not big enough in their overall lineup to compete with AMD on that matter - as they will not ever become a GPU supplier to Windows machines and always focus only on the Mac.