Hi Derek,
For the width of the Pages/Posts, let’s first try to check if you have a Layout Element set in some of your pages.
To do that, kindly visit a page with a proper width, and hover on Elements in the admin bar. Example: https://share.getcloudapp.com/KoujD1Pg
Check for an Element which says Layout.
Then, check your About us and Privacy Policy pages and see if it has or doesn’t have one.
Basically, if you do have a layout element which is setting the Content width as such: https://docs.generatepress.com/article/layout-element-overview/#content-1, you’ll need to create a new or set the same Layout element to display for other pages that need to have the same width.
Now, with regards to the words seemingly sticking to the edge on the left side on mobile, you may try to go to Appearance > Customize > Layout > Container > Content Padding, and then set the view to mobile, and add some right and left padding.
Example: https://share.getcloudapp.com/P8uQpNZ5
Hope this helps! Kindly let us know how it goes.