But its also related to groundstations, the satellites bounce the signal down to land. They're transitioning to satellites with the capability to network between themselves which will reduce the need for groundstations.

I don't know how much they really limit coverage due to borders. Like if you get one in colombia and just move it to venezuela, does it still work? They dont have permission in venezuela but they might just not region lock it until venezuela actually complains or something.

I know for a fact that other sat internet providers do work cross border in this exact situation.