What do i need to do to get a single full screen video page without the post or page at the bottom?

This will be my static front page.
Full screen video and footer only page, minus the post/ page.

Hello,

You can create a new page, switch to Page Builder, add a Full Width Stretched row without Top/Bottom padding, add a video widget there, and make sure that No header (only menu) option is selected for Front page header type in Customize → Header area → Header type section.

Please feel free to ask any other questions that you might have.

Kind Regards, Roman.