Editora 0.20.0. Archived, so links from that release keep working. Read the 0.24.0 page →
LSP: Previous Signature
lsp.previousSignature Show the previous overload in signature help
How to run it
Open the command palette (M-x in the Emacs keymap) and search for LSP: Previous Signature, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.