In the past some of our users used iNotes on their mobile device to watch over MailIn Databases. In Verse On Prem on a computer we can use delegated Mailaccounts to check these mailin databases.
But on a smartphone we miss the delegated Mailaccounts.
The PWA/mobile browser is the same Verse web application, but it is not the desktop experience. Some features are intentionally limited or behave differently because of the mobile UI.
You can Submit an AHA enhancement request
While researching I have found one,
Feature to allow Verse Web to open another user’s calendar on a mobile browser
Reading this “What’s new” in Traveler 14.5.1FP1 ( What's new in Traveler 14.5.1 Fix Pack 1? ), I guess they are not far to develop the delegated accounts on Mobile Verse clients.
They are usually more advanced on Android so depending of your needs and prereqs, it could quickly come!