Ryzen laptop and eGPU
I was looking for a Ryzen laptop with eGPU feature too, but no luck so far.
However I think there is some hope for the future - namely speaking Oculink PCIE standard which will enable connecting some remote I/O devices.
It is already appearing on the server market in Intel and AMD motherboards, so I am hoping that with the adoption of PCIE 4.0 standard next year it will start appearing in normal PCs and laptops.
Just yesterday Wendell from Level1Techs posted a video of a working Thunderbolt with a AMD Threadripper PC
Funny thing is it works better than on Intel processor. Hopefully it will be possible with a Ryzen laptop soonner or later