I want to add on to these implemented ideas:
Pop-up Arcade Expressions in ArcGIS Pro
Add Hyperlink with a variable to Pop-Up in ArcGIS Pro
and propose the SHAPE field of the feature class get added to the Arcade expression builder and GEOMETRY functions added to the expression builder to act on the SHAPE in a manner similar to python shape tokens.
The overall result of the idea is to be able to use the SHAPE field to display tokens that can be used to link to other systems by using the lat/long coordinates.
Additionally, some geometry functions specific to coordinate reference system conversions should be added to functions so that dynamic lat/long coordinates can be used in hyperlinks when features are projected.
