It's not even HDR. HDR is pretty sweet, you get impressed right away with Ori. And plenty of games will get HDR I bet, already like a dozen work well, but could easily be hundreds in a few months.
But on the Deck you have to accept the newest games are going to struggle unless they have Switch ports lol. Not all of them, especially if they are PS4/PS5, then they're usually ok, but once you get to PS5 only games, that may be too much. But there's no shortage of games to play, so I don't see the problem myself. I can't play game X, but I can play A. B. C. D. E. and F. Steam Deck 2 will play game X, so as long as you aren't deadset on playing every new release on the device, the power isn't that big a deal. And a large majority of new releases still run, just not every AAA.