ssr is changing drastically, just the last couple of releases changed how most props work. many of the props you have there don’t exist any longer, for instance raystep.
it has to first settle into a stable foundation. until then you pretty much have to assume that every release will look different. the react example uses an older ssr.
it would make more sense imo to go to ssr and study the new props. the last ssr i used that had the old props was 2.1.1 or i guess rt/postprocessing 2.6.1. i think more changes are upcoming since yannic is working on ssr global illumination now so expect some breaking changes there as well.