I get "Browser is not supported - please update to chrome" on many websites, last one is Barclays bank. Would be happy to add picture to illustrate the problem, but no upload button. As well no main menu button to tell which version of Opera.
On 46.0.2590.0 version there is no such problem - Barclays accepts this browser and Menu button in place.
Thanks for ideas.
Go to extensions, then "Get more extensions". Search for "User agent switcher". Install that, then click the new icon to the right of your address bar, and choose a browser and Operating System combo you think it might like...I choose Windows and Internet explorer, always safe choices.