I presume the timeout value for one's authentication credentials varies depending on whether one is using a built-in account or an enterprise account with Field Maps and ArcGIS Online. And, in the case of enterprise account, what the supporting system permits as a timeout.
After you login to Field Maps, is it possible to view somewhere how long your authentication credentials are valid for? Maybe in the Troubleshooting logging file?
In particular, I am looking to determine how long a particular user can work in offline mode before their credentials timeout and become invalid. I suspect the timeout information would be helpful in other cases as well.