Android 13 has a new security feature that blocks the installation of unknown applications on your smartphone.
During installation, Android 13 analyzesinstallation package, and if it is not downloaded from Google Play and requests access to accessibility services that are used to record calls, screenshots, manage network connections without the user's knowledge, it immediately offers to block the application.
Moreover, in some cases, additional restrictions may be imposed on applications that are especially suspicious for Android. Then the application cannot be installed.