Since outline folding feature is no longer experimental (see bug 14820), help page [1] needs an update. [1] https://help.libreoffice.org/7.4/en-US/text/swriter/01/outlinecontent_visibility.html?&DbPAR=WRITER&System=WIN
Patch submitted here: https://gerrit.libreoffice.org/c/help/+/132375
Julien Nabet committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/help/commit/6e7aa9a6c7a40149d05a611cee896c582a9952f7 tdf#148302: Outline folding no more experimental
VERIFIED, see https://help.libreoffice.org/7.4/en-US/text/swriter/01/outlinecontent_visibility.html?&DbPAR=WRITER&System=WIN Julien, thanks for fixing it!