Have you tested it ? I also prefer Debian server, because it use less disk space in my VPS,
Ubuntu take 7.88Gb disk, and Debian only take 1.66Gb disk, of course I choose Debian for my small VPS. I’ll try it out, I think it could work because Ubuntu and Debian are quite same family
Unfortunately, there are several incompatibilities (even with a forced installation), and if you attempt the standard installation, it will be blocked.
I suspect you may have already encountered this issue. I apologize for the delayed response.