: Click the Apple logo in the top-left corner and select System Preferences . Accessibility : Choose the Accessibility icon from the menu. Captions : Select Captions from the sidebar on the left.
: You can also toggle "Show automatically when languages do not match" to have subtitles appear only when the video audio differs from your system language. Visual Customization Big Sur subtitles English
You can change how subtitles appear to make them easier to read. According to AbilityNet , you can choose from several preset styles or create your own: : Click the Apple logo in the top-left
To enable or customize subtitles, use the Apple Menu Captions Settings : Big Sur subtitles English
: Check the box for "Prefer closed captions and SDH" to automatically show English subtitles whenever they are available.