oech3 [1] filed a deletion request for opera-developer-ffmpeg-codecs [2]: This and opera-ffmpeg-codecs are not updated for long time. Also Chromium ver of opera and opera-developer 135.0.7049.42 (from opera:about). So best packaging layout is providing codec packages at opera-ffmpeg- codecs to every opera packages. [1] https://aur.archlinux.org/account/oech3/ [2] https://aur.archlinux.org/pkgbase/opera-developer-ffmpeg-codecs/