Thanks Doug! That's interesting. That does really limit the offline use of Survey123, or at least makes it really inefficient to have to download the same area in both applications.
It also looks like once you have downloaded an offline area in Field Maps, that is the ONLY area available to you even if you have cellular connection or Wifi. I would think that if you had cell service, you would be able to view the entire web map, but that doesn't seem to be the case. Only the downloaded offline areas are available. The rest of the web map is not available unless you delete the offline areas from your device. Is that true, or am I missing something?
Thanks!