I have looked everywhere and I am still unable to switch off this 'feature'!
I've been using vi and, later, vim, since the 80's and I have never had need of multiple cursors, nor can I see a use for them.
:s/search/replace/ does everything I need so this new feature is infuriating beyond words, especially as I've no idea how to switch it off when it seemingly-randomly appears.
Would someone be wonderful enough as to tell me how to banish, remove, consign-to-history the multiple cursors feature in VSCode Vim 1.12.4, please?