That would make tic-tac-toe a high luck game, despite having no "random" element per see. In practice though, who goes first is assigned randomly, so you could say that is the luck element.
That's my point about games like Stella. People think of "luck" as things that are part of the game elements (like things you can concretely see on the table). But the unpredictability of a game is much more than that. In the case of Stella, the choices other people make matter too. No matter how good you are at the game, no matter how much you think about your picks, there is always a possibility that your opponents will make baffling choices that cause your loss. That part is unknowable and therefore a luck element too.
In contrast, a game like Chess doesn't have your fate in the hands of an unpredictable opponent. It's all determined by how well you think about the game. The only way your opponent can be unpredictable (in a way that is bad for you) is if they manage to outplay you.
