https://help.libreoffice.org/7.4/en-US/text/shared/guide/imagemap.html > 3. With the image selected, choose Edit - ImageMap in Writer and Calc or Tools - ImageMap in Impress and Draw. ... The ImageMap menu item is under Tools also in case of Writer and Calc (as of 7.4 at least).
At least since LO 7.2 ImageMap is in the Tools menu in Writer/Calc. Version: 7.2.7.2 / LibreOffice Community Build ID: 8d71d29d553c0f7dcbfa38fbfda25ee34cce99a2 CPU threads: 16; OS: Linux 5.15; UI render: default; VCL: kf5 (cairo+xcb) Locale: pt-BR (pt_BR.UTF-8); UI: en-US Calc: CL Setting this to NEW.
It's a simple fix: https://gerrit.libreoffice.org/c/help/+/141406
Rafael Lima committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/help/commit/d599b915a77663f7766e12e3b818050a6738cbf5 tdf#151617 Fix help about Hotspots in ImageMap