I use it on a Mac with OS 10.13
So the HP application is not compatible either (from 10.15 I think). It does not prevent the use of the printer connected to USB (the simplest) or Wifi.
The application can be downloaded to an Ipad or Iphone if necessary.
You can nevertheless check that the reference is available on the list of printers on your OS 10.11 by going to "add a new printer" (remember to make the latest updates before)

Thank you very much for your reply. It's nice that you took the time. In the end I opted for a Canon black/white compatible. I'm not sure what to do with my MB2350, but I'm sure it's a good idea to get a new one, and I'll be able to use it again. I'm not sure how much of a waste of material this is for the environment.