Is it possible to pass values from Collector to Survey123 (built in AppStudio) as per this blog post?
TIA
Yes, Below is HTML that I included on a Collector Pop-up that opens Survey123 generated from AppStudio and passes the asset_id and center values. You would need to add your Survey123 itemID and use applicable fields in your 123Survey.
<p><a href="arcgis-survey123://?itemID=<place your ID number of survey here>&field:asset_id={ASSETID}&center={Point_Y},{Point_X}">Launch Survey123</a></p>