Interesting — we got the in-door ice maker replaced twice under warranty. That’s the main failure we’ve had on all of our appliances.
By far, the biggest failure we have is Comcast Internet service. It’s not an appliance problem, but our security system uses Comcast to communicate with the central station and we get alerts all the time on Comcast internet failure. Often it will go out three times during a night and often two, three and even four times a week. They changed out one “squirrel-chew” on an outside wire and replaced one connector on the house with a “pull back” of inner insulation, but those things didn’t help.
We had Comcast for a few years. Didn’t like it. Verizon was much better.