If possible, please tap into the BiometricPrompt API that's built into the Android system to use as an app lock task. The original pin lock is outdated and ugly :)
Maybe consolidate the options under the "App Lock" task? For example- offer three options for lock- pin, password, or biometric credentials. And then, it could not be bypassed :)
Ah, found it! However- you can click anywhere off of the prompt and it allows you to easily bypass. Also, the app is visible behind the biometric box at the bottom. Is there any way to mimic the system bio lock using scenes or anything?