Sorry, I'm Swiss and don't speak Englisch very well: Does iTunes really still work on your Mac?? I have on my iMac installed MacOS Catalina (10.15.2). Here iTunes doesn't exist anymore; it's now called Music and belongs only for Music (Version 1.0.2.37). If I plug in my iPad (6. generation; 13.3), I have to go to the Finder, where appears the iPad-Sign. Here appears first "General"
and on the rigth also "Photos". Here I choose "Selected Albums" and then the "Albums" I want.
So that the Albums can be copied on the iPad, I have to do first the following in the App "Photos" (where all my Photos are):
Here I find the Album "My Albums", where all my Photos are in "Folders" and "Albums" (I copied this from the old Programm iPhoto). If an Album is in an Folder, I make a duplicate of the Album an put the Album out of the Folder directly under "My Album". Than it appears in the Finder (see before) and I can copy it on the iPad.
In the meantime (Jan 13, 9.29 am) Patti has posted two screenshots, where you can see, how it looks like.