Header Wide on Front Page behaves differently

So, I don’t currently have this site anywhere except a local install, but if I put Header Wide on the Front Page, at desktop/laptop browser widths it behaves the same as on Single.

But, if I narrow the browser width (or use the Mobile view in the editor), Header Wide has more left/white whitespace than it does on Single. I’m imagining it has something to do with Front Page being a Cover, but I’m not really sure.

Thoughts or suggestions greatly appreciated, esp. any tips on how to make it behave the same as on Single. Thanks!