How can I change the layout of my Google Forms?

When you embed Google Forms using the Embed HTML option, you can specify the width and height, but you cannot change the layout. If you want to customize the layout & look and feel of your Google Forms, you can use the Formfacade add-on for Google Forms. It allows you to choose fit to page, 1 column or 2 column layout for your Google Forms.

How to change the form layout?

Pre-requisite: You must have installed the Formfacade add-on for Google Forms. If you haven't installed the add-on yet, you can install it from G Suite marketplace using this link.