Once Orbot is installed and running (tap "Start" to connect to the Tor network), you will need a lightweight, modern browser that respects proxy settings. Popular options that work well on Android 4.2.2 include older versions of Firefox or the built-in Android browser (with manual proxy configuration). To route your browsing through Tor:

The Guardian Project develops Orbot and previously co-developed Orfox with the Tor Project. They maintain official archives of older versions.

You will likely need to search for a version from 2018 or 2019 (e.g., Tor Browser for Android version ) to find one that supports Android 4.2.2.

Look for historical releases on official code repositories, such as The Guardian Project's official archive or their legacy F-Droid repository.