@dipset But like @Mbun said, it's really down to your own personal tastes at this point.
Because one could easily argue (I personally think so) that Breath of the Wild is the best 3D Zelda ever, Mario Odyssey is the best 3D Mario ever, Smash Ultimate is the best Smash ever, Mario Kart 8 is the best Mario Kart ever, etc. Don't @ me!
And although review scores are not the be-all and end-all to represent a game's quality, those are all 90+ rated games, so the global consensus is that they are indeed great, and far from low-effort, corner-cutting titles.
Those are the 4 best-selling games on the platform, so I think it's unfair to suggest they're only selling so well because Nintendo fanboys gonna fanboy.
Aside from those, the good-but-not-great games like Kirby or Yoshi are selling a million or two, which is not mindblowing, I'd say those sales are adequate based on their quality.
And don't forget we're only 2 years into the console's life cycle, so there are way more great titles to come. I see no reason to worry, on the contrary I feel like they're getting more and more ambitious, or at the very least on point, with most of their series. I'm convinced that when all is said and done we'll look back on the Switch as having one of the best libraries of all Nintendo consoles.