For a TV mount you want to try and hit studs. They work best for holding stuff.
Special mount... Well... I have three TV's in this RV (one doubles as a monitor sometimes)
One is mounted with special brackets up front.. This is how it came from the factory.. I changed the TV, but NOT the brackts.. Eventually I will change the brackets but, that may take a couple years .
The ones in the rear.. One is mounted on a swing arm (This is the monitor/tv) I do take steps when traveling, Will cover in a paragraph
The other sits on a special Shelf. it has pins that hold it there, And when on the road I lift it off, unhook it and lay it on top of my dirty laundry.
The swing arm.
Before you travel double check all screws and bolts
I then swing it into the opening, and cross bungee cords over it.. Not this TV but the one that originally sat there fell a couple times.. thankfully when it falls its a soft (Bed) landing)