single page name and remove comments

Dears,

I want to know two things please:

1- The name of the single post page template to edit it using Elementor or any other editor to add a DIV at the top of the page.

2- remove the comments section on the single post pages.

ex:

https://www.ichss.co/seapre/en/english/news/pyramids-officially-requests-to-participate-in-the-arab-championship/

please check this link to know what I need to do in the two points.

thanks