Brake pads OEM KIA or Tesla

My father has a 2019 MYP and he still has the original brakes that came with the car new and just passed the 100k miles mark.

I'm at 71k on the original pads for my 2021 Model 3. I dont seem to go through pads quite as fast as some people.

Still on the originals at 110K miles on my 2016 Model S, plenty of wear left.

my 2015 Model S is still on the original brake pads, never had an issue, and I'm at like 125k miles.

Several teslas, both S and 3, and never had to replace them. I got used to one pedal driving. My 3 has almost 60k and brakes are almost new.

2014 MS P85D 102,000 miles still on factory pads and rotors.

What type of maintenance do they need? Can you get parts for them (say brake pads) easily?

70,000 miles on the X because the emergency brake pad fell out. They told me to redo the whole set at $2,000 since the ebrake was out and it wasn’t covered under warranty.