I got the game as a surprise present today, and am playing through. The game itself is much better than I was expecting, but there's something that makes me very worried for next year's games; the frame rate is atrocious, somehow even worse than on the 3DS. The game runs at an unstable 20-30fps and stutters heavily in any area with much going on. It stuttered so badly (definitely under 10fps) in Viridian Forest that I thought my Switch was dying.
Game Freak are terrible devs and they really need to bring in a lot of new expertise or get help from another dev to make next years games or they're going to fall far short of what they could be.
I think Game Freak know they're crap and just don't care, because why would they when every game sells 10m+ anyway.
Still, I'm shocked to know they couldn't get the framerate right on such an unambitious game with 3DS-level graphics. They can't tell me that's the best the game can run when a game like Smash Ultimate runs at a consistent 60fps... I thought the framerate issues were a 3DS problem, but apparently Game Freak's crappiness extends to any system.