If you have low storage space and you have filled it with a large game, it will not allow you to update when an update is available for that large game. Because in order to make the update, at least as much space as the size of that game is needed. What can you do in such situations?
If you can't update your large game, what you need to do is very simple. You will be able to download the updated version of the game to your device and your memory problem will disappear for that update. If an update has arrived, delete the game. Completely remove it from the device. Then install the game again. When you say install the game, it will load the updated version. If you say update without uninstalling the game already, it will download the same size. You don't lose any data. You don't earn either. You are using the same data again. Also, you update the game without any problems.
If you encounter such a situation, try to stay the game and reinstall it. You will update the game without any problems.