.NET Core doesn't return OData metadata in Responses on Swagger

Question

I'm using swagger in order to generate the endpoints for my React app. In order to do that, I need to specify the response objects for my endpoints and one of my endpoints that has [EnableQuery] annotation, which means is an OData endpoint placed inside an ODataController, doesn't return the right format. What I return now is

{
  "ODataContext": "string",
  "ODataCount": 0,
  "ODataNextLink": "string",
  "Value": List<Project>
}

instead of

{
  "@odata.context": "string",
  "@odata.count": 0,
  "@odata.nextLink": "string",
  "value": List<Project>
}

I followed this issue from GitHub and the code I used is

[EnableQuery(PageSize = ITEMS_PER_PAGE)]
[ProducesResponseType(typeof(ODataValueWithCount<IEnumerable<Project>>), 200)]
public IQueryable<Project> GetAsync()
{
    return _projectRepository.GetProjects();
}

internal class ODataValueWithCount<T> : ODataValue
{
    [JsonProperty("@odata.context")]
    public string ODataContext { get; set; }
    [JsonProperty("@odata.count")]
    public int ODataCount { get; set; }
    [JsonProperty("@odata.nextLink")]
    public string ODataNextLink { get; set; }
    [JsonProperty("value")]
    public List<Project> Value { get; set; }
}

private static IEdmModel GetEdmModel()
{
    ODataConventionModelBuilder builder = new ODataConventionModelBuilder();
    builder.EntitySet<Project>("Projects");
    return builder.GetEdmModel();
}

but this still somehow returns me the first object that I noted here even though the solution from the issue seems as it's working there. Do you know what am I doing wrong and how can I fix this? More code from Startup.cs:

app.UseSwagger();
app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("v1/swagger.json", "MyAPI V1");
});

services.AddSwaggerGen(swagger =>
{
    swagger.OperationFilter<ODataOperationFilter>();
    swagger.SwaggerDoc("v1", new OpenApiInfo { Title = "API", Version = "0.0.1" });
    swagger.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme
    {
        In = ParameterLocation.Header,
        Description = "Please insert JWT with Bearer into field",
        Name = "Authorization",
        Type = SecuritySchemeType.ApiKey
    });
    swagger.AddSecurityRequirement(new OpenApiSecurityRequirement 
    {
        {
            new OpenApiSecurityScheme
            {
                Reference = new OpenApiReference
                    {
                        Type = ReferenceType.SecurityScheme,
                        Id = "Bearer"
                    }
            },
        new string[] { }
        }
    });
    swagger.ResolveConflictingActions(apiDescription => apiDescription.First());
});