Examples of media added via the Media Picker

Uploaded image added via media library

Image uploaded and inserted from media library (via Media Picker option):

Getty image added via media library

Image uploaded from Getty Images media library (via Media Picker option):

Media added via URL

Media inserted using URL (via Media Picker option):
 

Examples of embedded rich media content (using  iframely)

YouTube file embedded using iframely:

X (formerly Twitter) card embedded using iframely:
 

Spotify file: