Is it possible to create a url that opens up Field Maps and opens up a feature by its objectid number?
Something like: https://fieldmaps.arcgis.app/?referenceContext=open&itemID=2017427bf1904b18b80b111bc285243f&OBJECTID...
Pretty sure you have to use globalid. See here https://doc.arcgis.com/en/field-maps/android/help/deploy-your-map.htm