Anecdote: Just over a decade ago I moved into a house that was empty of appliances thanks to an all too successful estate sale. Literally every single appliance has broken since then, some more than once. I'm lucky that my parents taught me to fix things.
But I remember watching my dad fix appliances, meaning that they weren't 100% reliable back then either. And one thing that might bias my "statistics" is that there are a lot more appliances nowadays. Things that were only barely coming into prevalence while I was growing up: Microwave, home computer, electric toothbrush (yes, I've repaired one), air conditioner (rare in my hometown), various garden implements, etc. Things that don't even need to be an appliance, but are now electric, break.