I’ve found an option when searching for my exact model of tv (50” Samsung UN50ES6900F), but it’s a very basic mount that doesn’t do what I want and it costs more money. link.
I was hoping to get something a little cheaper with further extension from the wall and the additional horizontal panning option, like this.
They look mostly the same to me, and I’m not sure why the TV isn’t VESA certified. Is there any reason NOT to just get the one I want? Will it really not work? I’m confused.