The sync is solid for that specific 1080p Blu-ray encode.
While not a standard technical scene tag (like "PROPER" or "REPACK"), it typically suggests: 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 sync is solid for that specific 1080p Blu-ray encode
The subtitles are well-timed and translated, rather than a "rough" machine translation or a "CAM" quality rip. including non-English parts (if any)
It includes all dialogue, including non-English parts (if any), and possibly "forced" subtitles for on-screen text.