Themes in the Shopify Theme Store no longer include a page setting type on the homepage by default. The richtext setting type will be the main method to add content to the homepage. Any apps that require merchants to install code to display content on the homepage need to update their docs and setup to provide an easier installation. The page setting type is still available for custom development.
This is a companion discussion topic for the original entry at https://shopify.dev/changelog/themes-in-the-shopify-theme-store-no-longer-include-a-page-setting-type-on-the-homepage