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