Link to the article: https://www.nytimes.com/wirecutter/reviews/nintendo-switch-2-preview/
I couldn't find this info anywhere else, so I thought this was worth sharing.
I also couldn't find their source, but assuming it's true I'm guessing they got this info at the NY Experience.
Edit: they’ve edited the article and this claim is no longer there. There are some speculations the Switch 2 has Hall effect Joy-Cons but this is yet to be confirmed.
by rodrigorigotti