The password that you enter to download apps, or to install an app, will be your admin password, the same password that you use to log in to your admin account. It is NOT the same as the password for your AppleID (which Apple has renamed "Apple Account" ) - unless you have decided to use the SAME password for both your AppleID and your system user admin account. You can check that in your System Preferences (changed to Settings since macOS Ventura), where you can look for "Users & Groups", where you can change your user, or login password, if you still need to do that.