2. Tap on the link and the option to open in the old app or browser will pop up. Select Browser and you can choose Always or Just Once. I tested both workflows and both worked. Setting it to Always will lower the number of prompts you get.
3. Prompt to authenticate on the mobile browser
4. After successful login on the AGOL site the Collector will be launched and be in the process of opening the map. This will then redirect the map to open in the Collector because it has been tagged with the application properties and has an editable point feature service present.