I don’t have a good example to give you, but the biggest difference I saw when comparing an app with and without prisma is that you don’t have to repeat your model and your schema code.
Before prisma, I had to define my entire data model in mongoDB and then I had to copy and paste all that code to define my graphQL schema. I had to independently manage those two data structures and it was a nightmare for that website because the schema probably had 200 fields in it. I’d especially get confused when I’d need to make changes because I’d have to immediately make sure I did it in both places.
With prisma, it automatically rebuilds all of that every time there is a change. It’s beautiful.