I am trying to install a 3rd party app, but when I try to run it, I always get the message: The developer cannot be checked. When I search for a solution, I find the info about entering to the Security and Privacy panel, general tab, and to change the settings to allow software from anywhere.
BUT I do not have it!
I have only From Apple store, and Apple store + identified developers.
I am admin on the machine, and I can correctly identify myself, when entering the Security and Privacy panel.
Thank’s for any help here. Catalina.
—–
Szabolcs Kovats

1. How To Allow 3rd Party App Install On Mac Os

How To Allow 3rd Party App Install On Mac Os

Click the lock icon, enter your password, and set the “Allow apps downloaded from” option to “Anywhere.” This will reduce your security as it allows unsigned apps to run, so be sure you know what you’re doing if you use this option. Steam and Other Third Party App Stores. The Mac App Store isn’t the only app store out there for the Mac. This is why we will provide you with step-by-step instructions on how to enable third-party software in CS:GO. Update CS:GO if you haven't already. Right-click on CS:GO and select properties. In the 'general' tab, click on 'set Launch options'. Type in -allowthirdpartysoftware in.