In reply to Li-An.

Thank you, Li-An.

The theme's footer displays credits information always (being a free theme I like to keep me as an author credited as you might understand). Above that the theme displays your custom footer built with reusable blocks functionality in block editor (Gutenberg). The options to set this up should be self explanatory, but in case of further assistance, please contact me at support forum.

BTW, there is a couple of "Footer" block patterns available in the theme too. Just search "Footer" when browsing block patterns.