You could try making the bind::esri:fieldType to null. It should load the geometry on the form, but not submit the geometry value when you go edit. Make sure you test this first, and add a hint to your end users.
Not confident it works as we wanted to lock down geometry editing at a view level and it broke survey123, even when the above was null. Seemed like it always wants to apply a geometry edit. See here
https://community.esri.com/t5/arcgis-survey123-questions/survey123-inbox-quot-attributes-and-geometr...
ENH-000158733: Provide the ability to edit existing Survey123 records via Inbox as a non-owner/non-administrator if the feature layer has allowGeometryUpdates set to false and the geopoint question is read-only/null.
What we ended up doing was:
- Make the map read only
- Add a Height=40% or larger to the body::esri:style column to make the map larger
- Configure the map zoom levels so it's zoomed in further.
- Encouraged the user to go back to the Inbox overview map if they want to see it
On PC, reviewing, I'd suggest making the map read only in Survey123 and leveraging access to a web mapping application as Andreas suggested. They can move the point there, and open the inbox survey (where the geopoint question is read only, or even not in the form at all)
