I think you're missing the point. The bakery would have to sell "less-than-fancy" sandwiches, but the sandwich shop could sell sandwiches with bread just as good as the bakery would use.
The bakery has to become a inferior sandwich shop to make sandwiches. The sandwich shop doesn't have to become a bakery to bake just the types of bread that they need to wrap their sandwiches.
The bakery would be better off selling dough to the sandwich shop.
this whole thread is hilarious and yet quite insightful.
Yes, the core idea behind Stack Fallacy was that if you are Apple you don't need to build a better CPU than Intel for all workloads - you just need M3 for your Mac.
So yes - just one type of bread. Like Subway. Or Panera.