Add a main tab that indicates that Pro is offline, with subcategories showing user license info. Currently the only indication that Pro is offline, while working in a project, is buried under Project, Licensing, Settings, Checkbox for 'Authorize ArcGIS Pro to work offline'. An obvious tab along the project header would be an easy reminder, especially when it is necessary to upgrade Pro. A dev in our office liked the idea and thought it might help during screen shares and possibly reduce support calls to ESRI.
Last week our entire county government was without Internet for half a day, which is my justification for working in Pro offline to assign addresses. Our GIS office works remotely, so I still had local Internet and county VPN. I assigned addresses in Pro offline that successfully processed through a few SDE layers, the ArcGIS Online feature service, and the county website.