Ifixit's teardown of switch 2 reveals that the sticks seem to be just as susceptible to drifting as switch 1 was. Overall repairability of the whole device is difficult

I'll post the joycon part but the rest of the article has some interesting info like the game card reader not being modular anymore and nintendo putting tamper proof stickers in it.

The Joy-Con opening process seems straightforward from the outside, with two of Nintendo's signature tri-point screws. But that only gets us so far. A glued-on plastic rib hides more screws, including another tri-point. That's not intuitive, and it turns what should be a basic repair into a frustrating guessing game. With this reliance on adhesive, we wonder how well it'll go back together. Only time will tell.

Once inside, the battery is easy to disconnect but hard to remove, secured with more adhesive. The tray under the battery also takes some coaxing. We were able to get the joystick out by flipping the controller over, wrenching the thumbgrip off from the other side, then unclipping the housing. We can't promise this won't damage the joystick. We'll keep testing and hope to come up with a better procedure by the time we publish our official repair guides.

And after all that? Sure looks like the same old potentiometer tech. There's no sign of Hall effect or TMR sensors. Instead, we're getting more of the same.

If you've dealt with joystick drift on the original Switch, Lite, or OLED, you know what's coming. And unless Nintendo is using some miracle new material on those resistive tracks, or the change in size magically solves it, the best fix is going to come from third-party replacements like GuliKit again. And, not to brag, but those sticks paired with some iFixit guides? A match made in heaven.