Dolphin is actually pretty much aligned with Konqueror.
Konqueror can open up anything using KDE's KParts.
Applications and libraries provide different KParts and Konqueror is just a shell that can open them all.
Dolphin is Konqueror's KPart provider for file browsing.
So basically Konqueror's file browsing capability is provided by Dolphin.
I used troff to typeset a few papers, because it was relatively familiar from writing man pages and more light weight than LaTeX. And groff is installed on practically every Linux or BSD box.
But I switched to LaTeX because it it more mainstream for this kind of document production workflow, so for instance we have a LaTeX template for official-looking University letters, which would be hard to reproduce using troff. And I also switched from magicpoint http://member.wide.ad.jp/wg/mgp/ to Beamer https://www.overleaf.com/learn/latex/Beamer for presentation slides.
For man pages there is now the OpenBSD mandoc processor https://mandoc.bsd.lv/ which can turn semantic markup in -mdoc format in to fairly nice html and other formats. And though -mdoc is a bit weird it is easy to use, well documented, and powerful. It is so much nicer than the old -man macros!
Can confirm. I wrote (for publication) about six novels using POD format plus some basic command line tools and a makefile, treating RTF as a final output format, back in the day.
(I was forced to adopt Microsoft Word for checking copy-edits only when my publishers insisted on moving to a Word/InDesign based workflow and ditching paper edits -- this was around 2008. Which in turn forced me to stop using vim as my main creative tool. If I had discretion to go back to chewing on text files today, I'd probably go with Markdown or a superset thereof.)
heres a more recent groff implementation of it the macros: https://linux.die.net/man/7/groff_ms prob not what you're looking for, you prob want to get ahold of the orig nroff/troff files
the implication for me at least is a lot, and yeah a lot more has come to exist since so shrug still nothing like using a troff/nroff from 1984 I spose