Editora 0.20.0. Archived, so links from that release keep working. Read the 0.24.0 page →
Git Log: Search History…
git.log.search Search the whole history by message, author:, content:, since:/until: and path:.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Git Log: Search History…, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.