Alright, thank you Eddy.
Also, in the meantime I also wanted to mention on the unsuccessful lengthy call, the call center had me try to use GoToAssist Corporatae by Citrix. The App installs but when you are asked to enable/install the plugin to share your mobile screen, that plugin is no longer found in the Google Play Store, so although they claim a solution; it is not a viable one.
On my own I used ADB to try to enable the App locking feature via the 'Apps with usage access' setting on the phone and there is still no Avast entry listed on the phone in the 'Apps with usage setting'.
Hopefully, tech or dev can get this issue resolved soon. This mobile security App is nice as most Avast products are. It'd be a shame to not have the bugs worked out for Android 6.0 and 7 beta.