My point was that there is nothing on this particular RNAV approach chart that gives you a glide slope, this is not LNAV/VNAV nor is it LPV both of which would give you a slope.
So, are you claiming there is no vertical path guidance on an RNAV (GPS) approach? In my experience, you do have vertical path guidance on an RNAV (GPS) approach in an FMS widebody like the UPS A300. The gotcha is that the aircraft knows where it is horizontally but depends on altimetry to generate the vertical path since the GPS doesn't do vertical position well without something like WAAS correction as in the LPV approach which you mention. Hence the RNAV (GPS) is still a non-precision approach.
Do you see that [3.24°] notation on the planview chart? Are you familiar with a D-DA?