What is the point of automatically generated vifm-help.txt in Vifm's configuration directory ($XDG_CONFIG_HOME/vifm), and how do I disable its generation?
vifm-help.txt
$XDG_CONFIG_HOME/vifm
To my understanding, it simply duplicates the manpage content for no apparent reason...
When 'vimhelp' option is off that's the file which is opened by :help command.
I think it was historically copied to allow editing by the user. Man page used to be much smaller years ago, so it could work.
You can't disable it, the file is always copied. It can probably be kept in /usr/share/vifm and opened from there these days. There is at least an issue with upgrades: the file won't be updated unless you manually remove it.
/usr/share/vifm
That file shouldn't be copied since v0.14.