Raytracing and Nanite on MacOS

I’ve iMacPro with AMD Radeon Pro Vega 16GB. I’ve planned to get eGPU AMD Radeon RX6950 XT with Hardware RT support.
Will UE5 use this Graphic Card to run Raytracing?
Will UE5 support Nanite on MacOS (intel and/or M1) on future versions?

Thank you!