LPV and LNAV/VNAV are two different things. You need a WAAS equipped aircraft to fly LPV, highly unlikely Envoy’s 175s are equipped. Hopefully you’re using “APR mode” on ALL approaches with vertical guidance.

Who cares about RNP, yeah it’s great to have, but like one of the other posts indicated it’s unlikely you’ll actually be “cleared” for any RNP to a major airport. I’m not too sure why YX deems it necessary to spend money on this, as you’ll only really use it flying out west, especially the PNW, which they’re not flying.