It didn't? Who knows how many copies of Americas_test_kitchen.pdf are floating around out there, how many recipes are in Apple notes or in Google Keep. Sure, you might just Google for "banana bread recipe" and get lost on a tangent about technology, and the smartphone isn't the personal computer of yore, but recipes existing in a digital format has happened.
I think in the context of the GP's comment, 'never' means it never (or hardly ever) happened on the products it was expected to happen on (home computers, as understood circa late 70s/early 80s). Yes, it has happened on very different devices decades later.
Spot on. The home computer never became accessible from the kitchen, and the storage system most anyone uses for recipes, if not paper, is the web or some other internet-accessible source. (Don't know for sure but I'd bet photos of recipes found online, viewed on a phone, is the most common.)
