Woodwad

So, in other words I can not do a RNAV flight MSFS without Navigraph Navdata?

I live in Santa Cruz County in CA where an airport exists, KWVI (Watsonville Muni). I have similar issues where IAFs exist on actual approach plates. But around KWVI in MSFS do not exist. Say if I want to do an RNAV from KSJC (San Jose) to KWVI and set up in Flight Plan and choose PROC and the drop down has RNAV for rwy 2 there are 4 choices. I pick one and Activate. MSFS does not recognize any of the IAFs. but does recognize the FAF FOXOV. There is no vector I can fly to in the GPS to a IAF to the IF to reach my FAF. X-plane does not encounter this. It recognizes all. I thought MSFS was supposed to be the more advanced flight sim. It has the eye candy but not the flight plan accuracies. Is there a kind of an update that needs to be done? And how?