I won't buy an extended warranty on most appliances. The frig I might consider one on but for stove, dishwasher and washer dryer I can pretty much fix those myself. Or pull them out and replace in less than an hour.
Stoves are pretty indestructible and not much can go wrong if you don't overload it with electronics.
If I get 5 years out of the dishwasher, washer and dryer I'm relatively pleased. Current regime have all lasted beyond that. Whirlpool dishwasher and kenmore for washers and dryers.
I think the annual subscription price to consumer reports goes a long way in saving me headaches later.