I am using the following to ensure serializing shifts my variables to lowercase snakecase as follows:

builder.Services.AddControllers()
    .AddJsonOptions(options =>
{
   options.JsonSerializerOptions.PropertyNamingPolicy = 
       JsonNamingPolicy.SnakeCaseLower; 
});

However, I am noticing it does not work the opposite way. I have a form which I am appending data to and from my testing in order for the model to bind correctly I need to annotate each field with:

[ModelBinder(Name = "test_item")]

This kind of defeats the purpose of my global setting and I am curious if I am able to add something similar for the deserializing/model binding.