I've used pen plotters that feed off a roll like that. One benefit is that you don't have restrictions on how long your print is

you can make very large continuous images. That can be desirable for certain applications.

The pen plotter I used had a paper cutter that sliced the paper at the end of a print. I don't know if this thing slices at the end of each page or what.

kagis

Ah. Apparently it also can handle pre-cut sheets, and it additionally has a cutter for the roll:

https://www.hackster.io/news/the-open-printer-is-a-raspberry-pi-zero-w-powered-fully-open-highly-flexible-inkjet-printer-30948a1787cc

The printer's paper, meanwhile, can be loaded as pre-cut sheets in letter, tabloid, A4, and A3 sizes, or as a continuous roll — with a built-in cutter knife able to trim the latter to the desired size following the completion of each page.

I dunno if they have a paper feeder, or if you have to insert pre-cut sheets one at a time, which I imagine would be obnoxious.