Is there a way to stop inline video clips from playing on MacOS Safari?

My question applies to the desktop version of Safari, either as proper content (for example, supporting a news story) or inline video ads. The iOS/iPadOS version of this question doesn’t work for desktop Safari.

Is there a way on macOS to disable auto play of video?

Found on Apple Communities : Stop auto play HTML5 in Safari?

Open Terminal and enter this command:
defaults write com.apple.Safari IncludeInternalDebugMenu 1

That will unhide Safari's "Debug" menu. Under that menu, go to Media Flags, and then select Disallow Inline Video. This will stop videos from automatically playing when a page loads.

Just tested on Facebook - works.

On macOS, you can disable inline media. This can be achieved by setting the preference manually, by quitting Safari and using the following:

defaults write com.apple.Safari WebKitMediaPlaybackAllowsInline -bool false

^{If you are using Safari Technology Preview, replace ‘Safari’ with ‘SafariTechnologyPreview’.}

Alternatively, you can enable the debug menu and choose the option from there.

1. Quit Safari and enable the debug menu:

   defaults write com.apple.Safari IncludeInternalDebugMenu 1
   

2. Choose Debug → Media Flags → Disallow Inline Video.

   

On iOS, this is not possible.