The current arrow vec/widevec is pointing at the right side, and we need an arrow that is reversed which points to the left side.
The Unicode U+20D0 COMBINING LEFT HARPOON ABOVE, or U+20D6 COMBINING LEFT ARROW ABOVE can be appended as a literal via <Alt>+X toggle; but it is clunky. Some work to add to OpenSymbol font as was done for bug 120047 [1] for HARPOON and WIDEHARPOON at the 6.3 release. @Khaled, easy hack worthy? =-ref-= https://gerrit.libreoffice.org/c/core/+/72987/