For basic CRUD like is emphasized in TFA you probably only need EF models to represent the db and DTOs to form the input/output contracts of the API. Many .Net shops (claim to) do DDD and will have an extra layer of domain models, but if you understand that your API is primarily CRUD they're just unnecessary complexity.

While you won't be able to share your back end models with the front end, OpenApi spec generation is pretty much automatic so you can generate the models or client code.