The differences between Android Deep Links and App Links
Deep Links VS App Links
You can create various types of links in your Android app.
Deep Links that handle all URLs and have their own schemes.
Web links are Deep Links that use HTTP/HTTPS schemes.
Android App Links are web links that have been verified to belong only to your app.
What is Deep Linking:
In general, deep linking refers to linking to specific content within a website or app rather than the homepage.
App Links :
App Links are just deep links that have been verified for a website (Requires Digital Asset Links)
App Links show No dialog, your app opens to handle your website links
App Links support 6.0 and higher
For Modern Android Development (Navigation: Deep links)
If you want to make it easy for the user to navigate down into a deeper part of your hierarchy and your application without having to launch the application, then click, click through that hierarchy.
For example, if you want to make it easy for them to immediately get to a shopping cart form in the middle of the shopping application then you can use the deep link to do this, surfacing those links outside of the application in ways like using notifications or shortcuts where they can click on that link and immediately takes them to where they want to go inside of your app.