FortiGate Transparent Proxy

Have a use case to allow Chrome and MS-Edge to have access to internet, but all other browsers should be denied.

Following the guide. https://docs.fortinet.com/document/fortigate/7.4.3/administration-guide/720455

Showing mixed results using the proxy, where Opera browser is mostly broken, (The Goal), but internal by IP still responds).  The method from doc we are using is user-agent, which shows ua-min and max versions.  Question is shouldn't Opera, Netscape, Firefox, and Browser X fail, since they are not defined?  These are done in Address objects, and only MS-Edge and Chrome are defined.  These objects show no reference to anything, which may be cosmetic.  We do set Proxy Policy rules getting hit.