The question is always if games even qualify as a medium by which to express art, for which the answer is of course. Once you accept it as a medium for art, there is no question of what is "better." That's just up to you.
Some of the best artistic experiences I've had have come from Portal 2, Ori and the Blind Forest, Papers Please, Okami, among many others. I'm not here to argue if Pynchon is better, to me he's not. There's no competition, because it's subjective, and a waste of an argument.
The question is whether individual video games qualify as quality or "good" art.
Unfortunately, I think the answer is generally a "no". But the potential is certainly there. It's a very new medium.
I won't get into any comparisons of books and games, but I can absolutely say that I have played games that, at the very least, can objectively (or as close to objectivity as you can get when discussing art) be considered good art.
__
Also, I don't really reject the possibility of there being a fact of the matter as to the aesthetic quality of things.
I don't really affirm it either, and if it is true I'd say it is entirely permissible to have aesthetic preferences that go against the true fact of the matter as to aesthetic quality.
And if it turns out that there is no fact of the matter as to aesthetic quality, then arguments that something is of good aesthetic quality could often be transformed into explanations of why that person has those preferences, which still seems like it could be worth knowing.
So, I think it could make sense to not reject all arguments for a thing being of good aesthetic quality
Try Undertale. Or Planetscape: Torment. Or Dwarf Fortress, but that one is a huge time investment to even begin to get into it.
If you are saying that Dwarf Fortress is itself the product of a jam session, then I understand your point; I simply disagree.
Both are art in my opinion, just different kinds.
Same as a play scenario is art, and a play performed on a stage with audience participation is art as well, but different.
I stopped reading when the author offered clickbait "best games of [year]" lists as evidence of the artistic accomplishment of video games. I'm totally excited by video games as a medium, but I've never seen anything that compared in creative quality to something like Pynchon.