As an owner of the switch and the game. Nope not any issue you read online. No problem with the joy con, no performance problem (either handheld or TV). No dead pixels.

I bought the carrying box for it, then no scratch on the screen. Battery life is good when used in transport (forget about road trips of more than 3-4h).

The game slow a little down when there is a huge amount of grass, but it doesn't impede the gaming experience.

All in all, I'm really happy with my purchase and I don't get how so many people have so many issues with it.