At which point the support folks can close the ticket and say "We don't support that platform, please use the mobile app, or ask your browser developer to better support Desktop-on-Mobile". Not supporting the platform, and actively preventing it are two different things. Especially with all the invasive power mobile apps have on your device vs being contained in a browser.
Too many apps stick their fingers into parts of the device that they don't belong. The well has been poisoned with so many apps abusing their privlege, so privacy conscious folks have to assume the worst when being pushed in that direction especially when the browser app worked without an issue (According to OP).
Too many apps stick their fingers into parts of the device that they don't belong. The well has been poisoned with so many apps abusing their privlege, so privacy conscious folks have to assume the worst when being pushed in that direction especially when the browser app worked without an issue (According to OP).