I use small cleats in my van. It provides a convenient place to tie off lines, or hook straps and bungee cords. My thought would be to install them on the corner area of cabinet work or other places where you know there is some wood structure to fasten properly.
The intention is to use them to help stabilize the things you store or keep them in place. I don't suggest that the cleats installed on cabinetry are good for really heavy loads. Our bicycles are one thing that the cleats work well with. It seems the bikes are always trying to slip around and move.
The cleats can be installed in out of sight areas. I suppose they may not be good for those who like an extremely clean look inside their RV.
There are some different styles available. vic