Our SOP's require pilot validation of the approach in the FMC, which means:
Approach must be line selectable, No Vertical or Lateral mod of points beyond the FAF (speed constraints OK), Final course and distance tolerances within 1 deg/1nm, No min x-ing alt infringed, App Angle >= charted angle, Alt at RWY/MAPt appropriate, RNP 0.3 or better, and when avail AP/FD coupled.
All this is done as part of the brief and easily checked in about 30 secs in the FMC. Have flown many GNSS/RNAV approaches and never had a problem.
Interesting to note that from previous comments some of this is not possible on Airbus - or have I misinterpreted.