If you want to keep your game progress, you need to close a video game properly.
- Save your progress in the game.
- Click the Exit button in the game.
- Click Exit in the game launcher if it appears.
- Unless you need to click Exit in the game launcher, close the browser tab.
- Control + Alt helps to close the browser tab (the screenshot).
At this point, the game progress and achievements are sent to cloud servers of a corresponding digital platform (as Origin, Steam), and stored there until you get back to the game next time.