Survey123 Connect for ArcGIS can load at most 10000 / 10k hosted feature services, due to the search result limit in the ArcGIS REST API per https://developers.arcgis.com/rest/users-groups-and-items/search.htm, from which a user can choose to create a survey from, it would be beneficial to have way to filter certain hosted feature service from a portal's content.
The ease of use for auto-populating the new form build is broken and our best practice is impossible with the 10,000 character limit.
For larger and global organizations, a 10,000 10k record threshold is easily obtained and this bug is a significant inhibitor to our established workflows. Every organization wants users to be able to create a new form from an existing feature service with the benefit of pre-loading the required submission URL and feature service naming conventions + field attributes being auto-filled in the the appropriate places of the form building architecture.