@FrostyOfTheNorth, @wongataa , @JohanElzenga , @richardplondon , @dj_paige
I've done some digging on this and found that there is indeed a default folder sort order that can be changed outside of LrC.
The default sort order is specified in the Preferences file, which is just a text file and can be edited using a text editor.
To locate your Preferences file for your system, see Adobe's help page:
https://helpx.adobe.com/au/lightroom-classic/kb/preference-file-and-other-file-locations.html
Quit LrC, then locate the Preferences file. It would be a good idea to make a backup copy of it before going any further.
Do not attempt to edit the Preferences file while LrC is running.
Open the Preferences file in a text editor. Search for:
AgLibrary_defaultSortType =
The normal setting for this is
AgLibrary_defaultSortType = "captureTime",
Please note that the comma at the end of the line is essential.
If you want the default sort order to be File Name, then change this line to:
AgLibrary_defaultSortType = "fileName",
then save the Preferences file.
For each Sort Type, there is also a default sort direction. For Capture Time (ascending) this is specified by the line
AgLibrary_defaultSortDescending_captureTime = false,
If set to false, the sort direction is ascending; if set to true, the sort direction is descending.
Similarly, the default sort direction for File Name (ascending) is specified by the line
AgLibrary_defaultSortDescending_fileName = false,
Changes made to these settings in the Preferences file will only affect New Folders or Show Parent. Existing folders will maintain their sort order settings.
There is a way to reset all folders to a new default sort order, but it involves changes to the catalog outside of LrC and I'm not going into that here. If interested, send me a Private Message.