The Nature Conservancy TNC arcgis online layer is here:
https://tnc.maps.arcgis.com/home/item.html?id=bdb9243133cd469faac96a0ce4dfa6a3
Add TNC web service REST api endpoint to ArcPro
https://services.arcgis.com/F7DSX1DSNSiWmOqh/arcgis/rest/services/TNC_Lands_-_Public_Layer/FeatureServer
Download web service layer into file geodatabase