How to change the game mode WITHOUT THE CONSOLE / Creative with achievements

When using this method, you DON'T GET BLOCKED achievements!
You probably thought this was another prank, but no, you were wrong.
The original language of the manual is Russian, and I am not a professional translator... well you understand

To start, save and exit the game
Next, open the Steam library, and Right-click on Subnautica: Below Zero-Properties-Local Files-Overview
We will open the folder Subnautica, there we find the folder SNAppData, open it, then the folder savedgames, and finally slot00##

There are several slots!? How do I determine which slot?
In the slot00## folder, open the screenshot.jpg file
There will be shown the last moment of the game
And so find the one you need

And there is the file gameinfo.json open it with a text editor.
Here we find the "gamemode" parameter and change it

0-Survival ("gamemode": 0)
1-Free Mode ("gamemode":1)
2-Hardcore ("gamemode":2)
3-Creative ("gamemode": 3)

Save the file, done!

Yes. Almost ...
Create a world on survival, save and exit the game.
We change it to a creative, go in, perform an achievement (for example, сonstruct a cold suit), save it, and exit.
Change to survival, go and ... - achievement received!

You're a very cool person if you read this guide.