Using page-something.php as static front page

Use ‘front-page.php’ for your template. You can read more about it at https://codex.wordpress.org/Creating_a_Static_Front_Page

Or create a page template that you set in the editor. This will allow you to set it on any page and you’re not tied to the ID.

https://developer.wordpress.org/themes/template-files-section/page-template-files/page-templates/

<?php /* Template Name: Example Template */ ?>

Page Template