Lazy-load : only for images or also iFrame and video

Hi,

The description in the settings tab seems to indicate that Jetpack’s lazy-loading feature is only working on images but I just wanted to verify.

Other plugins like WP Rocket have an option to Lazy-load images/iFrames and Video.

Does Jetpack do all these or does Jetpack feature only works on images and is it not available for the other content types.