The OPPO Find N update comes with version number F.22, according to the official post. Users must have the basic version A.22 or A.24 or higher on their devices to receive this update. You can check if you have the OPPO Find N on the required version by navigating to Settings > About This Machine > Version Information > Version Number.
OPPO has included a note that mentions some key points to keep in mind before updating to the latest ColorOS 13.
To begin, some third-party applications are incompatible with Android 13. After upgrading to Android 13, third-party applications may no longer function normally, resulting in freezing, a blank screen, display flashing, or battery drain. The store will attempt to update these apps to their most recent versions.
OPPO Find N ColorOS 13 Android 13 Based Update
The brand also mentions that the system will go through a number of adaptation and optimization steps within two days of the upgrade, which could result in the phone getting hot, freezing, or consuming a lot of power. It is recommended to restart the phone with the screen off and charge it for two hours after the upgrade; otherwise, it may recover on its own after some time of regular use.