List my own app extensions on the Admin App page

[Leon2]

I'm fairly new to Shopify. I've created multiple extensions inside my app. On the admin ui page of the app i would like to display the available extensions within my app. I can't find a graphql query to display extensions per app. I can query functions by id so i can hardcode all the ids in my UI. I was wondering; are the IDs of the extensions the same in all shops? So can i hardcode them ... or is there another solution to display all the extensions of the current app.

Thanks!