xiota [1] filed a deletion request for obs-hevc-vaapi-git [2]: Per package maintainer comment, this package is deprecated and unmaintained because of upstream obs-studio changes to include the functionality that this package previously provided.
[1] https://aur.archlinux.org/account/xiota/ [2] https://aur.archlinux.org/pkgbase/obs-hevc-vaapi-git/