Android 13 adds a security feature that BLOCKS users from enab | Android Security & Malware

Android 13 adds a security feature that BLOCKS users from enabling accessibility services for apps they sideloaded outside of an app store. This is designed to combat banking trojans and spyware that misuse Accessibility APIs
https://blog.esper.io/android-13-sideloading-restriction-harder-malware-abuse-accessibility-apis/