You can choose whether to show or remove your site logo from the Footer block. Here's how to do it:
1. Hover over the Footer block and click on the "gear" Block settings icon.
2. To enable a logo in the footer, check the Business logo option. To disable, uncheck this option.
3. To show the website name in the footer, check the Site name option. To remove it, uncheck this option.
4. Click Save to confirm the changes.
You can learn more about customizing your footer from this tutorial.