Okay, yeah. When you want a link in a rich text popup to be a clickable link, you'll need to use an Arcade element.
https://www.esri.com/arcgis-blog/products/arcgis-online/mapping/part-1-introducing-arcade-pop-up-con...
If you view the source on your current popup, you can copy and paste the entire thing into the Arcade editor for the output, then make adjustments from there.
Write the link portion like: <a href="{obit_url_field}">Obit Link</a>
And when the popup element is rendered, the link should work.
- Josh Carlson
Kendall County GIS