I've got a few Bosch appliances. I like the Bosch website where I can get spare parts [1]. When the door spring of my 15 years old dishwasher broke a couple of years ago, I went to the Bosch website, enters the model number and got an exploded view with all the parts. I ordered the spring and replaced it myself. A few minutes of work. Much faster than finding a repair guy with a free appointment slot. My Bosch washing machine has a WiFi label on it. Never connected it. Only using the buttons on the front panels. On the same website, you can get the instruction manual PDF, so I usually have a peek review in the manual of a device before buying. I don't know if that spare parts service is available everywhere but I have used it in 3 European country so far.

[1] https://www.bosch-home.com/de/produkte/ersatzteile