These options can be found in Customizer > Footer panel eg: https://d.pr/i/BVhqog .
Choose a footer layout. In this list you will find all the footer layouts (or disable the footer). The list is automatically filled with footer global sections.
Custom footer width
Customize the footer’s width. Normally the footer is sized the same as the container (that can be changed in General settings > Layout settings > Container width ).
If you’re planning on using a global section footer, you should simply adjust the footer’s width there in Elementor’s global section mode.
If you’re using the plain simple default footer, you have the option to show an automatic copyright text with this year, or create a custom text.