I can agree with corporate policy, however I don't need my banking app or my web browser (private browsing mode) deciding whether I know how to handle a screens

I can agree with corporate policy, however I don't need my banking app or my web browser (private browsing mode) deciding whether I know how to handle a screenshot securely on my own device. You certainly won't find these restrictions on a Windows 10 machine running Chrome. Why should it be on mobile?