Underlined has no effect under Print in Plain font

Questions
1

Underlined has no effect under Print in Plain font

plainUnderlinedPrint.PNG
plainUnderlinedPrint.PNG542×239 4.44 KB

It’s an unimportant bug because of the Bold workaround.

2

It works fine for me on Mac.

underlined.png
underlined.png775×203 17.3 KB

Is there some font difference between OSes, perhaps? I attached my notebook if you want to see how the output cells display.

3

Is there some font difference between OSes, perhaps?

There are always tremendous differences between operating systems, you know - Wolfram Inc. has to compile the front end as well as the Mathematica kernel against the actual operating system:

  • Windows (all flavours) is rather a message broker than an operating system - despite they sucked in all the Digital Equipment operating system people after the decline of Digital Equipment; but this was the deciding move to make Windows NT a worldwide success, e.g. see DaveCutler
  • Linux and Mac OS are rather ordinary operating systems - kernel focussed - but had to fight to keep up with Microsoft Windows windows …