Can you set a default naming convention for photos taken during a survey in Survey123 (example: "Structure ID-Date.jpg"?
See this post Changing the default photo name
Looks like not yet.
What we do is have a field with a calc to create the field name. Then I have a script that pulls all the attachments out, renames using the calc field, then stores them on the file system. We want to export them anyway so this works fine. Not sure if it would help your workflow.
Retrieving data ...