Question regarding storing and saving information

I want to store player deaths in my game. I know that I can store that in a Save Game Slot, but it feels unnecessary to update the Save Game Slot every time the character dies. Is there any other way to store or save the information. The game does not have any save functionality where as the player manually saves the game.

Note: My first thought was to track the deaths in the game instance and then save it to the game slot when the player quits the game. But if the player would quit the game through the task manager or the game crashes, i assume the data wouldn’t be saved.

Any help on this matter will be appreciated.