Can't say I have heard anyone say they've had the newer stuff for 20 years or more.
Dr. Who, maybe.
The first fridge died in less than a year, and they did replace it free of charge.
Unfortunately, the replacement model leaked all over the place, ruining our new laminate floor.
I just replaced the dead 6 yo Kenmore dishwasher last week; somehow the Kenmore range got some sort of dirty liquid trapped in the oven glass, which is quite unsightly; the over-the-range microwave never was fully functional, with some of the buttons not working at all (anyone who's ever installed one knows why we didn't just take it down and return it).
It also now has numerous cracks in it, and we do NOT abuse it.
So, after only six years, we're batting a thousand in the kitchen.
I won't go into the problems we've had with the lawn mower we purchased at about the same time...