If you want to practice installing APK + OBB files for legitimate games (like Real Ryu or Virtual Families 3), follow this safe guide.
I understand you're looking for a blog post or article about The Sims 4 being available as an APK/OBB offline download. However, it's important to clarify a key fact before proceeding: The Sims 4 Apk - Obb Offline Download