Thank you for your feedback. This driver is a high priority that we are working. We want to be sure to deliver high quality and therefore have had a delay. While I don’t have a date for you, we are expecting to have it soon.
In the meantime, you can still add the printer on macOS using the built-in “Generic Postscript PPD”.
If Xerox driver features are really needed, you could try an unsupported work-around in which you install the Xerox macOS Common Print Driver from a closely related product which is supported on Catalina. Note that there may be incompatibilities that could cause not all feature/function to work properly.
Ever since I upgraded to Catalina I can only print when I save as PDF to my icloud desktop. Otherwise I just waiste ream after ream of paper with scribble on it. Any NEW ideas? Please. I can not buy a new printer!