From your profile page, tap the menu button to find saved and liked reels This article will show you how to see the reels you ...

To find your saved Reels on Facebook.com, tap the Menu option in the top-right corner, which looks like a three-by-three grid. Go into Saved. You can see everything you've saved here, but you can ...

So, you'll need to find out what that is for any game where you want to copy the save file. To do this, use a third-party site like SteamDB, which can easily tell you the app ID of any game.