Hello Antonio
Must disagree with you on figure positioning.
Page formatting looks better and the text is easier to follow if figures are positioned at the top or bottom of a page. I use this method to prevent a LO user from becoming confused and losing the purpose of a procedure when text is interrupted by a figure. A figure is only used for reference by a LO user as and when necessary.
Many years ago, before Windows, macOS and desktop publishing software, I was trained how to format and typeset pages by a typesetter who used to work for newspapers and book publishers. My training included how to create a good reading flow of text. Also, I was trained on how to use a flat bed camera to create printing plates and use an offset printer.
It is all too easy to use Windows, macOS and desktop publishing software, but without training a user guide becomes messy and difficult to follow.
There is an old saying that you cannot teach an old dog new tricks, but this old dog has learnt a few using Windows, macOS and desktop publishing software.
We will probably disagree on a few more things with LibreOffice, which can be beneficial to producing good LibreOffice user guides.
Regards
PeeWee