Hello,

The Education Hub theme by default sets the background image set in the customizer setting as a background image throughout the website.

If you are willing to set a different background image for the home page only, you can achieve it by adding some custom CSS in your Admin Dashboard > Appearance > Customize > Theme Options > Advanced Options > Custom CSS. The CSS you can use is :

body.home{
background-image: url(your image url)!important;
}

You can copy and paste the image URL of your desired image after uploading it to the media section of your dashboard and clicking in the image.

Hope this Helps,

Best Regards !!