Often hosts subtitles specifically timed for popular x264/x265 encode releases. How to Sync the Subtitle
If the audio and text don't match up exactly, you can use these tools to fix the "offset": subtitle Black.Widow.2021.1080p.BR.x264.AAC.6ch...
The audio format (Advanced Audio Coding) with 6-channel (5.1 surround sound) support. Where to Find the Subtitles subtitle Black.Widow.2021.1080p.BR.x264.AAC.6ch...