The safest and only official way to play The Sims 4 on macOS is directly through the publisher's desktop application.

The base game of on Mac. Because the game transitioned to a free-to-play model, you do not need to use any third-party cracked installers or torrent sites, which often contain malware or outdated files. 🚀 How to Download The Sims 4 on Mac

from the "Play for Free" download options.