A:AnswerYes they do fit. Slightly looser fit then on the Xbox controller. But just when installing.i haven’t used them for a long time as I have them on the Xbox and ps4 controllers. I like the short controls for the switch.
A:AnswerYou have to get used to playing with your thumbs on top of the stick not the edges. That is what causes them to pop off easy it takes getting used to but it will get better with practice and is a good habit for gaming in general