Joy-Con joysticks use a potentiometer to read the voltage at a wiper that slides across a strip of resistive material. That material wears down over time, or plastic and dust can dirty the sensors.
Stick drift is a huge problem with other Switch models. One survey found that 40% of Switch owners had problems with their Joy-Cons drifting, and things didn’t get any better with the Lite or OLED editions. After a bunch of lawsuits, Nintendo’s president even admitted it and apologized, setting up a free repair program for customers in some parts of the world.
Lack of innovation: checked.
Locking users into their ecosystem: checked.
Chasing only shareholder value : checked.
The only thing diferentianting them from Apple now is the pricing, which hasn't reached outrageous levels ( yet ).
I used to respect them for doing their own thing - sometimes winning, sometimes losing, but in the end still innovating. Apparently not the case anymore.