How to Downgrade MacOS Catalina to Mojave and fix an error occurred while restoring from the backup

Post testing and upgrading from Mojave to Catalina (Macbook pro Mid 2012) my personal experience is that it had performance issues and relatively slowed down my Macbook performance experience a great deal. It doesn't support 32-bit apps ie Microsoft 2011, iphoto, Garageband e.t.c. So might need to purchase 64 bit equivalent or contact app developer on how to purchase their compatible versions. A downgrade to macOS Mojave will reset your Mac book pro to nominal state provided you backup your files using time machine otherwise you did be doing a factory reset which isn't what you want, so back up your files so you can restore later from an external hard drive. . This tutorial runs you through process steps on how to achieve this. Other useful links: How to get old versions of macOS https://support.apple.com/kb/HT211683    • A Time machine error occurred while restor...   An error occurred while restoring from the backup after having installed Mojave. How to Upgrade Mac OSMojave to OSCatalina & Fix the error occurred while installing selected updates    • How to Upgrade Mac OSMojave to OSCatalina ...