Just created a small workflow for macOS Monterey users to quickly run Shortcuts from the new app. It's built using Ruby, as it's installed in macOS by default - there shouldn't be any issues. It also requires `shortcuts` executable to be available in system.
GitHub Repo - https://github.com/eiskrenkov/alfred-run-shortcut
You can download the latest "alfred-run-shortcut.alfredworkflow" file from Releases Page