On my 2014 Precept, I use a step ladder then step on the ladder where I am about four or five feet up onto the ladder. No bending and pulling oneself up, less stress on the ladder. Makes things easier to climb up and in my opinion safer.
2014 Jayco Precept UL
1997 Thor Chateau Sport 21RB
I carry the 16' Little Giant ladder to access my roof, windshield, side windows, etc. Works great and stores neatly in my basement storage. Much sturdier than the attached ladders for the few times I need to get to my roof. Use it more for window washing than anything even though I have an extendable washing brush.
2020 seems to be a weird year for ladders. My 2020 Accolade, built in 2019, does not have a ladder but others I have seen in photos do have a ladder. Personally I like the clean look without the ladder and I also have a 16.5 foot portable extension ladder.
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk TOAD