I've been slowly learning about Direct Formatting in LibreOffice over the years. I joined this list with the intention of helping document this area of functionality, and in the coming months I may finally have some time to do so.
Is there somewhere I can read up on the topic? My feeling is that it's under documented. Use of styles is pretty well documented I believe, but direct formatting is not, I think.
E.g. I only recently discovered that if you turn on italics to directly format a word, turn off italics, and continue writing, everything from that point on is still directly formatted.
I think the discussion around https://bugs.documentfoundation.org/show_bug.cgi?id=135871 shows some of the complexities that can arise, around direct formatting (DF).
I believe the new Styles Inspector will help a lot in the use and understanding of styles, so perhaps DF is being documented even now?