This looks interesting. Does this save the entire state of the game or only the player position?
Viewing post in Save System Template (Godot 4) comments
It saves modification time, the thumbnail image data and the player position. I don't want to provide a bloated solution that just saves everything there is. Instead, you can edit the save_data.gd file to include whatever game-specific stuff you want to get saved. Then in save_manager.gd you can edit the methods save_game() and load_game() accordingly.