Thank you, Paul-ny.
With the caveat that I am not that familiar with Adobe apps, there are issues with apps that don't write their settings when saving a preset. Apple apps, like TextEdit and Contacts, don't write the settings in their application panels to the print settings. (For instance, TextEdit doesn't save "Print Header and Footer" or "Rewrap contents to fit page.")
This could be what is happening with Adobe. But if this worked with Adobe apps before Ventura, this could be due to Apple redoing the print dialog in Ventura. ??
Since Adobe has their own dialog, maybe the changes in their dialog aren't saved? But the settings in Apple's dialog are? Again, I am not familiar enough with Adobe apps. Is Adobe not telling Apple what the settings are when going from Adobe's to Apple's print dialog?
Another example of how screwy presets can be is Pages, when trying to save the paper size. Since Pages puts the paper size in their dialog, and it's not in the system dialog that is put up after theirs, there's no way to save the paper size.
So the difference in what applications show and where in the print dialog(s?) may also be a factor here.
When I do a *simple* test in TextEdit of saving only the paper size (using Apple's menu for paper sizes, not a vendor panel), I see the paper size set correctly when selecting the preset.
Epson's comment that the problem is with Apple may be just their way of saying it's not their fault? They are not going to an app by app comparison.
But if the Epson settings are correctly saved and restored from the vendor panels (Printer Features or Printer Options) in the standard Apple apps (Safari, Mail, TextEdit and others, with the exception of their respective app panels), then it's probably not an Epson issue.
I realize this doesn't help solve anything, but maybe this is helpful?