Yes, I did. It is similar in methodology to the transform command in AI, but it is not a step and repeat command. Using the business card example, I have my 2x3.5 business card file placed on the artboard, I select the file, and select Transform Each (in Illustrator) and I can set the amount the file will be copied, say horizontally by 3.5 inches, and then select both instances of the file, Transform each again and copy the files vertically by 2 inches, and the use the transform again command to fill in the page. This can be made into an action, so you really only need to select the first file and run the action to do what you need to do. In indesign, you can use the step and repeat tool and create as a grid and do it in one click.
The way affinity publisher and designer handle this is (in my opinion) kludgy and isn't fast. You can ctrl+alt drag the file to copy it and place it where you like, then select the 2 files and do it again, then you can use the duplicate command until you fill the page, then you have to go back and make sure the files are placed correctly using the transform tool which takes time. OR, you can select the first file, then hit ctrl +j, select the new duplicate, set it's position using the transform tool, select the 2 placed files, use ctrl +j to duplicate, then set the position using the transform tool because the duplicate command doesn't duplicate item positions if you set their positions using the transform tool, and repeat that ad nauseam until the page is full. This is not macroable as far as I can tell. I could probably setup the file with guides and use the snap function to ease the correct placing of the files, but I prefer to set the precise location of duplicated items using the transform tool. Why eyeball it when I can place it precisely where I want it?
I have been using design software professionally for a long while, and honestly this is not acceptable TO ME in a professional design suite. Time is money, and having to manually position duplicate files takes time. The minimum acceptable solution is the ability to macro the common layouts I use, but a strong and robust multiple duplicate tool is what I want and need in a design program. Sorry about the essay, but I really do like the software and would like to see it have a suite of good and useful tools (while avoiding bloat), and I feel I really need to explain what I would like in the final version and what I don't like in the current beta.
TLDR: Printing tiled isn't a good option, thomaso's suggestions work BUT aren't great and the current duplicate tool needs a whole lot of work to meet my needs as a user