Your best setting up bluelink when you have the car, so it can connect to each other.
No The Tucson does not have a PTC heater so unable to preheat/cool. From my understanding a PTC heater would use the traction battery and eat into the range given PHEV’s have small batteries in comparison to EV’s. The Rav4/Across has a small heatpump, which is far more efficient but, one of a very few PHEV’s that do.
I have lived without such a thing for over 40yrs of driving and its not something I can say I’ll miss by not having one. That said I haven’t connected or properly looked into Bluelink yet.