The inline Visual editor for the sm Formula editor module was "graduated" from experimental at 24.2.0 [1] and includes a 'Settings' panel toggle, and an expert configuration stanza 'InlineEditEnable' toggle, for what is now the default for OLE formulas in other LO modules as well as the sm Formula editor. Unfortunately, the Visual edit mode was never documented while in dev experimental mode, and can be a bit jarring. Some documentation effort is needed for this new 24.2 release default feature. =-ref-= [1] https://gerrit.libreoffice.org/c/core/+/156486
Looks like we've never given any coverage to the Visual mode editor in the Math Guide releases. So complete from scratch...
*** Bug 160097 has been marked as a duplicate of this bug. ***