I believe that is a render. Keycaps are PBS classic, which don’t yet exist. And yes, it’s not the metal or plastic Vortex. Metal has odd side gap from lack of curved plate and the plastic board has a notch detail around the windows keys are not true to the original Model M.
It’s lovely. I hope someone has plans to make it a reality. I remember when someone was planning to run a very close approximation of the Model M through TKC but then it never happened.