It doesn't even have RPG combat. The only RPG element is the story. There's exactly one viable weapon with some skins and stats changes, and exactly one way to handle combat encounters. It's a hack and slash with bad (not just shallow) hack and slash combat.
As dated as Skyrim combat is, it's not as dated as the Witcher's is. Dark souls 1 is janky as hell and murders it at swordplay while also having a whole stack of different viable weapon choices.