nVidia pretty much makes cards like these for every generation, they just don’t get released because the excess power and price required to get that last 5% of performance is just bonkers due to massive diminishing returns.
Guess they are betting on there being enough people with way more money that sense to actually sell these to this time around.
Graphics are graphics, that’s what limits most of the games and devices. Optimize something to run on the Switch 2, and that should work on the Deck too.
That benchmark used to be the PS4, but most developers have dropped support for last gen hardware.