Motor-homes maybe different.
Have the kitchen (fridge n stove) in the slide of my Lacrosse.
Gas and electric lines are in U with a plastic support.
What I dont like is the gas line is looped a foot or so behind the rear tire when closed.
What if the fridge was on while going down the road and I had a blow-out??
Also the gas line on mine rubbed on the slides rams gearing. I had to use pipe wrap to protect the gas line.
Next ..what I dont like is the fabric bottom on my fridge slide.
Slide out /Underside wearing