I have a loaded 2020 LT with every available option aside from sunroof and bucket seats. Attempted to order the exact same thing a month ago and you cannot now get leather pkg with the LT or convenience pkg 2. I ordered anyway and got bucket seats (cloth) that will have leather installed before I take delivery. Not having rear and front parking sensors and blind spot alert didn’t sway my decision. The All star pkg on LT trucks is still available, but it doesn’t give you memory seats (never has) and does include convenience pkg 1, as well as the push button start/keyless entry.
An LTZ automatically gives you memory drivers seat, and most are ordered with 20” wheels (they are not standard on a base LTZ). I don’t remember if cooled seats are standard on a LTZ or part of an optional package. Heads up display is not a standard LTZ item, but part of a package (I don’t remember which one).
Sunroof, cooled seats, power sliding rear window and memory seats are all options I’ve had in the past and never used, at all. So for me, unless I simply liked an LTZ grille that much better, it’s not worth it. Prior to the current shortage, if I’d found an LTZ that was discounted so well that the LT made no sense, I’d grab one, but that’s not happening today or anytime soon. Therefore, I didn’t see the need to spend the extra cash on options I don’t use and some of which I don’t even want on a truck.