To Help w/ Save Game Data Struggles

I’m not making this because I need help, I’m making this because I needed help and found nothing, let me explain. So over the course the past 2 or so years, I had been having issues where I thought the way my save game instance system was programmed, people would lose their progress in my games when updating to the latest versions, I spent over a year researching into it only to find nothing over, and over, and over again, slowly losing my sanity and wanting to pull my own hair out over this issue that i thought was so impossibly complex, never realizing it was so simple. All I needed to do was package my games in Shipping mode, I was relieved and understandably extremely ■■■■■■ off, the amount of sanity i lost because of an issue that should have been documented somewhere, I hated it. So I’m here to document it so hopefully no one else has to go through the suffering I did because no one ever documented this ■■■■ before. IF YOU ARE HAVING ISSUES GETTING YOUR GAMES SAVE DATA TO TRANSFER AUTOMATICALLY BETWEEN THE PREVIOUS VERSION OF YOUR BUILD TO THE NEW BUILD, START PACKAGING YOUR GAME IN SHIPPING MODE, EASY FIX!!!