How can I add a banner, collection, and video to my custom page?

How to add banner and collection and video to page and view it ?

Create a new template for that page and add a theme section to the template with the settings you’ll need to capture the content (image, title text, video).

https://shopify.dev/tutorials/customize-theme-create-alternate-templates

https://shopify.dev/docs/themes/sections

Hey! this can be useful.