LNAV
On an LNAV, the missed approach point is the last waypoint depicted in the profile view.
The LNAV/VNAV procedure usually has lower visibility minima than LNAV alone....due to the benefit of the stabilized approach descent provided by the vertical navigation.
The reverse is true when obstacle clearance cannot be assured to the missed approach point. In this case, the lower LNAV visibility indicates there are obstacles below the MDA.
The location of the missed approach point does not affect the required visibility minima for the LNAV procedure.