Welcome and congratulations! We are literally in the same boat (or RV). I also picked up a 2020 Thor Vegas a couple months ago. Bought it at General RV (Dover FL) and drove it to San Diego. Baptism by fire as they say. I haven't been in a RV since I was a kid.
Some nice folks - ducksface, JamieGeek, Bob Dennan etc who own the same rig will introduce themselves. They're a great bunch and provide lots of help.
I'd start with the following link. I gentleman by the name of Ed Felker wrote an awesome Users Guide for the 24.1 -
https://www.thorforums.com/forums/f3...nual-4961.html
I'm also happy to assist also from my limited but rapidly growing knowledge base.