✅ filling byte array with a random int

BinaryPrimitives.WriteInt32BigEndian(bytes, Random.Shared.Next(5000000));
//vs
bytes = BitConverter.GetBytes(Random.Shared.Next(5000000));

BinaryPrimitives.WriteInt32BigEndian(bytes, Random.Shared.Next(5000000));
//vs
bytes = BitConverter.GetBytes(Random.Shared.Next(5000000));