Thank you in advance for your help.
Either way I think handling the conversion in the form is the way to go! I like what you found in that you can display in the form different than the report if that is important.
There is additional information here regarding pulling data, specifically coordinates. It has different formatting then you provided. I will try exporting different ways and run sample reports to save credit https://community.esri.com/t5/arcgis-survey123-questions/can-pulldata-geopoint-pull-lat-long-in-dms/td-p/1280222#:~:text=Hi%2C%20does%20anyone%20know%20if,Go%20to%20Solution.&text=Hello%20@NatalieSlayden%2C,want%20to%20separate%20the%20calculations.
There should be a preview for the report that spits out a low resolution preview that doesn't consume credits.
You might have to change the way Survey123 collects and records the geopoint:
https://community.esri.com/t5/arcgis-survey123-questions/can-you-change-the-location-format-of-the-geopoint/td-p/779664
Otherwise here is some reference material, doesn't specifically answer your question but helps with syntax: https://doc.arcgis.com/en/survey123/browser/analyze-results/featurereport-map.htm
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