Sims 3 on Mac

@MGsoccer22  If your MacBook Air still runs Mojave, then yes, it is.  If you're running Catalina, then no.  Or more accurately, not yet, not until EA releases the updated version of Sims 3 for macOS, which will hopefully be in the not too distant future.

https://answers.ea.com/t5/Technical-Issues-Mac/An-announcement-for-The-Sims-3-players-on-Mac/td-p/8271641