[Ambroos]

In my last job we considered it was well (2.5-3 years ago I think), and decided it wasn't worth implementing the GraphQL server part for just a limited set of clients that could basically use a small set of REST endpoints. We were building a video streaming app exclusively for the Belgian market, so bandwidth was not a concern.

GraphQL shines when you have a big(ish) data model with a high variety of queries you want to run on the client. It's also cool if you get it for free with your tech stack, I think. But if you have to implement a complex GraphQL server stack yourself to work with existing data sources it's definitely not always worth it.