That is the one big downer about the Switch, the analog sticks drifting if you so much as look at them wrong. I haven't had it happen to mine yet but I know it'll happen eventually. The Switch will probably end up being future generations of collectors' Atari 5200 lol
Friend gave me four 5200 controllers the other day. The first two I tested worked, and I'm not touching the other two so that they can stay in a state of quantum-superposition with working.