I don't know every board's factory wax, but I sure did love my Burton Shaun White board out of the plastic. The factory wax on that was great. Better than the Ride I had that's for sure.
Waxing is really up to you dude. Factory wax should be fine for a few sessions. If it feels slow and choppy, then get it waxed. I usually get my board waxed 2-3 times a season if I get a lot of shred time. Maybe around 10 session intervals. Rub on wax is actually a good thing to have around. Just make sure that's not all that you are using. Rub-ons are good for a quick tune-up in between hot waxes. This is especially useful if you are hitting a lot of rails.
As for your edges, I'd say leave them alone for now. You are a beginner, so you won't really notice it. You're going to catch your edge numerous times regardless while you are learning. Detuning your edges in the tip and tail is mainly for park riders. This is so they don't catch it on rails and stuff. Man-made snow will naturally file your edges down anyway while you carve and do heel/toe side stops.
Just get out and ride bro.