Comparing the two parts, you can see that they are almost identical. The main difference being that the ones I bought are slightly different on the bottom, which makes them sit up higher on the PCB, ever so slightly. As far as I can tell, these are genuine ALPS parts, and there’s no real indication that would tell me otherwise. Only time will tell if that’s the case or not, tested though lots of hours in Rocket League.
As mentioned above, the difference in the switches is little round nubbies that stick out from the bottom on the ones I bought. My solution to make sure they sit the same on the PCB was to use my soldering iron to melt the little buggers off. It was a quick and easy fix, and I was happy with how they installed. Once it’s soldered in place, it won’t be going anywhere.