According to the information provided, macbook lol usually does not cause direct damage to computer hardware. However, this depends on the configuration of your macbook. Since the macbook operating system is not suitable for playing games, a low-configuration macbook may overheat and freeze when running games, and this may cause damage to the computer for a long time.
Another answer mentioned that when using an Apple laptop to play League of Legends, it is possible for the temperature to reach 80 degrees. If it is always operated at high temperatures, performance may degrade over time because high temperatures cause electron migration. However, please note that a laptop usually only has a lifespan of about 5 years.
Other answers mentioned that Thunder's hard drive caching technology can prevent hard drive damage and suggested using an all-in-one computer to play games.
To sum up, when using a MacBook to play League of Legends, you should pay attention to maintaining good heat dissipation and avoiding long-term high-load operation to reduce potential risks. It is also recommended to choose equipment suitable for gaming needs to play the game.