In the case of an ArcGIS On Line collaboration between organization A and organization B, in the Survey123 mobile application, users from organization B who are members of a group in organization A cannot see the surveys of the organization A to download if they are shared with everyone by organization A. Even if they are a member of organization A's group that contains the surveys. We currently need to unshare with everyone so that members of organization B can view and download them, via group sharing.
This should be corrected, so that any member of a group (of the organization or of a collaboration) can see and download in the mobile application any survey shared with this group, whatever the level of sharing elsewhere (user, organization, everyone).