I have configured a link in a popup in Collector to open Quick Capture. When I tap the link nothing happens. I scaled back the link to just include arcgis-quickcapture:// and still get the same result.
If I enter arcgis-quickcapture:// into the browser then Quick Capture opens.
If I change the popup to open Survey 123 (arcgis-survey123://) Survey 123 opens.
I'm not sure if I am typing something wrong in the pop up. I am following the instructions here: Integrate with other apps—QuickCapture | Documentation
I am using an iPad ios version 12.4.3