Hi Emmanuelson,
Yes, you can use shortcode/elementor templates in endpoint content:-
1. Create a new page and paste your shortcode in content section or create a elementor template.
see screenshot:- https://prnt.sc/1t78t8z
2. Create new endpoint and select “Page” option from “Menu Content”, and then select you new created page.
See screenshot :- https://prnt.sc/1t795jd , https://prnt.sc/1t79c2p
3. After open the new endpoint, you can see your shortcode/elementor content in endpoint’s content section.
See screenshot :- https://prnt.sc/1t79kur