[youtube] Extracting URL: https://www.youtube.com/shorts/YfjmyX7vUss
[youtube] YfjmyX7vUss: Downloading webpage
[youtube] YfjmyX7vUss: Downloading web creator client config
[youtube] YfjmyX7vUss: Downloading player 9fc68080-main
[youtube] YfjmyX7vUss: Downloading web creator player API JSON
[youtube] YfjmyX7vUss: Downloading web client config
[youtube] YfjmyX7vUss: Downloading web player API JSON
[youtube] [jsc:deno] Solving JS challenges using deno
WARNING: [youtube] YfjmyX7vUss: web_creator client https formats require a GVS PO Token which was not provided. They will be skipped as they may yield HTTP Error 403. You can manually pass a GVS PO Token for this client with --extractor-args "youtube:po_token=web_creator.gvs+XXX". For more information, refer to  https://github.com/yt-dlp/yt-dlp/wiki/PO-Token-Guide
[info] YfjmyX7vUss: Downloading 1 format(s): 18