It's usually a subjective one based on personal tastes, except perhaps in the context of sales discussion, as you often see here on VGChartz.
In my experience, what people tend to mean by this in regards to Switch 2 is that they're accustomed to getting certain tentpole franchises like 3D Mario, Smash Bros, mainline Zelda, etc in the first 1-2 years of a Nintendo console's life, whereas with Switch 2 the big guns are so far mostly absent outside of Mario Kart, with most of its lineup consisting of smaller stuff.
While I personally have had a really good time with games like DK Bananza and Splatoon Raiders, I think a lot of folks are getting antsy for the next big megaton blockbuster from Nintendo, the kind of thing that sells 10m+ and sells consoles.
