There is no official "patched" Facebook app. Any patched version is a third-party modification, which violates Facebook’s Terms of Service.
Be extremely cautious with files labeled as "patched" or "free download" from unofficial forums. These files can pose significant risks: Facebook - Apps on Google Play facebook app for android 236 free download patched
Here is a draft focused on safety and best practices: There is no official "patched" Facebook app