Tap to click using touchpad not working
The solution offered seems "unclean". I assume the person changes his input options by running "xinput" at the beginning of their session. That way they have to mirror the same behaviour twice. Once for their user X session and once for LightDM (the mentioned solution in the article). Using Xorg config files would be way cleaner and only require the option to be set in 1 place.
I don't know if this should be mentioned in the LightDM article or if the hacky solution should be removed?
Cursor size in lightdm-gtk-greeter
The cursor size for the gtk-greeter is set by
org.gnome.desktop.interface.cursor-size in root's dconf and
/etc/gtk-3.0/settings.ini. To be sure, set both (one or the other tends to be ignored).