❔ HotChocolate with IQueryable, apply a required filter on the ef entity

public sealed class QueryType : ObjectType
{
    protected override void Configure(IObjectTypeDescriptor descriptor)
    {
        descriptor
            .FieldCollectionQuery<SupplierGraphDtoType>("suppliers")
            .Argument("companyId", a => a.Type<NonNullType<IntType>>())
            .UseBuiltinMiddleware<SupplierGraphDtoType>(MiddlewareFlags.All)
            .Resolve(ctx =>
            {
                var q = ctx.DbContext<DataContext>()
                    .Set<Supplier>()
                    .AsQueryable();

                int companyId = ctx.ArgumentValue<int>("companyId");
                q = q.Where(s => s.CompanyId == companyId);

                return q.ProjectTo<Supplier, SupplierGraphDto>(ctx);
            });
    }
}