Personal geodata bases worked in ArcGIS but do not open in ArcGIS PRO is the a work around?
It is not supported. Here is a blog (with other blogs in it) that discuss this in detail; https://www.esri.com/arcgis-blog/products/arcgis-pro/data-management/its-not-personal/
Here is a link to the geodatabases supported with Pro: https://pro.arcgis.com/en/pro-app/latest/help/data/geodatabases/overview/types-of-geodatabases.htm
Hope this helps!