OPPO has its own cloud service. This works similarly to Google’s.
There is a variation of this method that sometimes works on specific OPPO models without wiping data: I forgot my screen lock code for OPPO A96 4G
Older versions of Android had a generic "Forgot Password" button right on the lock screen that linked directly to your Google account. For security reasons, OPPO and other manufacturers have moved away from this. However, depending on the specific version of ColorOS running on your A96, you might still have a backdoor. OPPO has its own cloud service
This does not remove your old forgotten code. It simply overlays a new one. Once you unlock the phone, go to Settings > Fingerprint, Face & Password and disable the old lock type entirely. go to Settings >