Hi sabegg​

Synchronising bookmarks/favourites from personal to corporate devices is indeed possible if the Corporate instance of the browser does not prohibit it. For example a user can login to Google Chrome at home and save bookmarks only to then login to Chrome in the corporate environment to see their personal bookmarks again.

If other browsers in the corporate environment are also configured to import/sync bookmarks between them, then they too will show the users "personal" bookmarks.

Manage who can sync browser settings - Google Chrome Enterprise Help

With regards to Norton LifeLock, are you 100% sure the user is using the Corporate browser and not confusing their home browser with one thats accessible inside the OFFICE environment? Having said that, it is entirely possible that if you have configured Browser redirection, it will render the website on the client device but appear in the remote desktop (VDI instance), thus using her outbound network protection as opposed to the corporate proxy for example.

Hope that helps

Andrew