The phrase in the context of a subtitle file name like Death.on.the.Nile.2022.1080p.Bluray.DTS-HD.MA.7.1.x264-EVO is likely a release group note or a personal tag indicating the quality or completeness of the translation.
It includes all dialogue, including non-English parts (if any), and possibly "forced" subtitles for on-screen text. subtitle Death.on.the.Nile.2022.1080p.Bluray.DT...
You can find and download various versions of these subtitles on reputable repositories like Subscene or OpenSubtitles. The phrase in the context of a subtitle file name like Death
While not a standard technical scene tag (like "PROPER" or "REPACK"), it typically suggests: including non-English parts (if any)