One way to look at it is: if it works, it works. Just try it out. It's
pretty darn likely that if those other distros work on Fujitsu PCs, then
Debian will work.
Is your real issue that of support? I.e., are you concerned that if
something stops working, that you'll be unable to get Fujitsu tech
support because you're using an unsupported OS?
If *that's* the real issue, then you probably only have a few choices:
- go with a supported distro, even if Debian seems to work ok, or
- negotiate something with Fujitsu to have them support Debian, or
- accept living without Fujitsu support