Hello,
In Arcmap there exists an XML file called "AddInFoldersList.xml" which is located at Users\<username>\AppData\Roaming\ESRI\Desktop10.8 and stores the locations of folders that contain Add-Ins. Does this exist in Pro? We have all our custom add-ins sitting out on a server for our users and they all have the Add-In folders specified in the AddInFoldersList.xml file. Depending on where our user is sitting on any given day (home vs office) that drive letter may need to be changed -- If they are in the office it resides on their v:\ but when working from home they may be accessing one located on the d:\. We have written a tool that will update the AddInFoldersList.xml file to make the drive letter change for them (it does lots of other stuff too but we will focus just on the AddIns).
I know that Add-In folders that are specified in Pro (in Add-In Manager) get stored out in the registry at: Computer\HKEY_CURRENT_USER\SOFTWARE\ESRI\ArcGISPro\Settings\Add-In Folders. I'd rather avoid having my tool messing with the registry so was hoping there was an AddInFoldersList.xml equivalent in Pro.
Thanks!