The footer is the same on all pages. You can see whole options via Appearance -> Customize -> Footer.
Here you can set up:
Footer logo and its dimensions;
Count of additional Widget Areas;
Also you can set other areas up on the Widgets page (Appearance > Widgets) and choose from the suggested widgets. Please see the attached screenshot.
PS: Please note the Demo Content doesn't contain these widgets. So they need to be added manually.