Some rvs have a plywood square support board built into the wall at a tv location from the factory. On my tv’s, i mounted my pivoting tv arm to a cutting board first by bolting it. Then that board got mounted using a dozen screws , into the factory plywood thats inside the wall.
The bolts and washers will not rip out of the cutting board and all those screws will distribute the weight. I have never had a tv fall off a wall using this method. I also use a support strap attached to the wall studs using screws and a plastic adjustable buckle secures the web strap around the tv.
