The one I linked to is both 64 bit and macOS 10.13 compatible, but, as far as I can tell, NOT 10.14 compatible.
Which means I don't require it, as I am OS 13.6 and everything works perfectly. The issue is moving to OS 14 and still have everything working well.
As the System Information Utility indicated, and joemike confirmed, I appear to have all the 64 bit drivers I need. However, there's still a mystery. Where did I get them?
I'm pretty good about keeping software up-to-date and, where my drivers are concerned, I would not have downloaded from anywhere except the Canon site or Apple. But now, when I go to Canon and select my printer, they show nothing for either OS 13 or OS 14. It doesn't make any sense to me that they would once have had the drivers but no longer post them. It's a question I want to ask, once I am able to engage Canon.
If anyone else has thoughts, I'd like to hear.