Earlier quoted context omitted.
Until there is official support for Mac coming from nvidia, I don't think anything will happen. > the hardware wasn't usable on macOS This eGPU thing is from a third-party if I understand correctly. I don't see why nvidia would get excited about that. If they cared about the platform, they would have released something already.
The eGPU "thing" should work on anything that supports thunderbolt as it has native support for pcie.
Even on Intel Macs using eGPU with nvidia cards was near impossible. nvidia just doesn't care about it after the breakdown of the two companies' relationship.
Whether a third party has created a signed driver or not doesn't matter much until there is more interest from the GPU maker. This barely moves the needle.