Ok so the footer line “Take a look at our….” is simple enough.
You can add this using a HTML widget in Appearance > Widgets > Off Canvas
For the text above the Menu you would need add the HTML using a Hook Element:
https://docs.generatepress.com/article/hooks-element-overview/
Add your HTML to the hook content
Select from the Hook List: inside_slideout_navigation
Set Display Rules to Entire site.
Once you have them added i can help with some CSS for alignment if you need.