Having just double checked there is no issue with setting the homepage or any page to 100% width for Avada 5.5.2 and it is not being reported as an issue either. You can confirm this by checking the Avada Classic demo homepage -> https://avada.theme-fusion.com/
If you need further assistance or have any further questions, please create a support ticket using the link below and our support team will gladly assist you
We look forward to helping you!
Thank you kindly