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That's called a completed save file. If you want one, keep one, if you don't, don't. It's unreasonable to ask for an end game cheat purely because you can't decide whether or not you want to have an end-game file. So yes, it is absolutely the topic.

I meant like a way I don't lose my progress if I uninstall the game like a file number or smth so I keep it

If you delete the save file, how is the save file meant to be kept?

I uninstall the game not delete it directly I want a way to keep my stuff