I have multiple models which I end up writing the JsonPropertyName attribute but this gets very annoying so I wanted to initialize it globally in program.cs. This was what I added thinking it would automatically handle the conversions:

builder.Services.AddControllers()
.AddJsonOptions(options =>
{
    // Global settings: use the defaults, but serialize enums as strings
    // (because it really should be the default)
    options.JsonSerializerOptions.Converters.Add(
        new JsonStringEnumConverter(JsonNamingPolicy.SnakeCaseLower, false));
});

However, in my models if I remove the attributes as shown here:

    [JsonPropertyName("state_id")]
    public required int StateId {get; set;}

    [JsonPropertyName("entity_name")]
    public required string EntityName {get; set;}

and forgo the JsonPropertyName I was under the assumption when serializing my model with Ok() to the frontend the names would automatically adjust to as my properties names once were (lowercase snake). However, they are still in camelCase and I am not sure why. Is there something additional I need to do?