Dealing with collection type in MongoDb provider efcore

[Collection("ProgrammingLanguages")]
public class ProgrammingLanguage : BaseEntity
{
    public string Name { get; set; } = string.Empty;
    public string Logo { get; set; } = string.Empty;
    public string Description { get; set; } = string.Empty;
    public string? URL { get; set; }
    public DateTime ReleaseDate { get; set; }

    public ICollection<ProgrammingLanguageVersion>? Versions { get; set; }
}

public class ProgrammingLanguageVersion
{
    public string? URL { get; set; }
    public DateTime ReleaseDate { get; set; }
}

//Insert code

        context.ProgrammingLanguages.Add(new ProgrammingLanguage()
        {
            Name = "Test Programming Lang 2",
            Versions = new List<ProgrammingLanguageVersion>()
            {
                new()
                {
                    ReleaseDate = DateTime.Now,
                    URL = "bruh"
                }
            }
        });

        context.ChangeTracker.DetectChanges();
        Console.WriteLine(context.ChangeTracker.DebugView.LongView);
        await context.SaveChangesAsync();

        var result = context.ProgrammingLanguages;