oech3 [1] filed a deletion request for vivaldi-update-ffmpeg-hook [2]: https://aur.archlinux.org/packages/vivaldi-update-ffmpeg- hook#comment-791049
And maintainer of Extra/vivaldi and Extra/vivaldi-ffmpeg-codecs is same. It is difficult to wrong. [1] https://aur.archlinux.org/account/oech3/ [2] https://aur.archlinux.org/pkgbase/vivaldi-update-ffmpeg-hook/
