The Joy-Con 2 controllers are much better than the originals, but I won’t be using them outside of handheld play.

The Switch 2 will replace the Switch's physical rail system with a magnetic connection where the Joy-Con 2 "snap" into place. Nintendo has already stated how it wanted this new design to attach ...

More an attachement for the Joy-Con than a Joy-Con design itself, this 2019 patent shows a touch pen that can be slid onto the Joy-Con rail and used with the Switch touchscreen.

There are three distinct controller configurations in Super Smash Bros. Ultimate: the sideways Joy-Con, the Gamecube controller, and the default dual Joy-Con or Pro Controller layout.

Summary New Nintendo Switch 2 leak reveals potential orange Joy-Con with layout change. Switch 2 is rumored to have magnetic Joy-Cons, doing away with the slider design.

This series of videos seems to show not only why the left Joy-Con's performance has been so spotty, but also that making necessary improvements should not be very difficult for Nintendo.