I want to use ST_GEOMETRY functions in SQL queries in a ArcGIS Pro 3.1 mobile geodatabase (Windows).
The Load ST_Geometry to a mobile geodatabase for SQL access docs say:
Load the ST_Geometry library.
This example loads the ST_Geometry library to an SQLite database on a Microsoft Windows computer:
SELECT load_extension('stgeometry_sqlite.dll','SDE_SQL_funcs_init');
Here's what I've tried:
I downloaded the .DLL from MyEsri:

Using Beekeeper Studio SQL client, I connected to the mobile geodatabase and tried to run this SQL statement:
SELECT load_extension('stgeometry_sqlite.dll','SDE_SQL_funcs_init');
But I get an error:
not authorized
Anyone know how I can get around that error?