using System;

public class Program

{

    public static void Main()

    {

        var o1 = new Model { Prop1 = "string" };

        var o2 = new Model { Prop1 = "other string" };

        var o3 = new Model { Prop1 = 123 };

        var comparer = new ObjectsComparer.Comparer<Model>();

        var result12 = comparer.Compare(o1, o2, out var _);

        var result23 = comparer.Compare(o2, o3, out var _);

        Console.WriteLine(result12); // Should be false

        Console.WriteLine(result23); // Should be false

    }

}

​

public class Model {

    public object Prop1 { get; set; }

}