* The so-called antivirus apps is of little use on modern smartphones.
* It's up to the app developers to make their apps Oreo compatible.
* Google's Play Protect and the built-in security features in Android and Google's own apps do more than any third-party app is allowed to do.
Don't waste your time and money on snake oil.
And you sir, seem extraordinarily paranoid.
That's rich coming from the person that cant get their mobile security products to work lol