Skyrim's world responds to character choices.
While in F4 youll always be playing the former soldier/lawyer looking for their son, this is given a major emphasis in the prologue and proceeding events and any deviation from that set context is, while not impossible, inevitably going to feel pretty dissonant. You dont really get to say or act in an RPing way but there's plenty of blanks that the game is fine with you filling in. So in Skyrim each time you start a new game your dragonborn can have any backstory imaginable, the single contrivance being they happened to be crossing the border at an unfortunate moment, and what they do after that is more heavily influenced by the given quests rather than outright dictated, its pretty easy to ignore whatever you want to ignore if it doesnt fit with the dragonborn youre imagining. I think neither are particularly good at role playing in game but Skyrim leaves a lot of effective negative space that more role playing inclined players can fill in, where F4 gives an undeniable specificity to your characters past and place in the world that kinda kills the magic of it, for me at least. Thats a fun question given the two examples.