Overriding default template if page slug and post type are same

I have created a post type named ‘faq’, and a page ‘faq’ for displaying the posts under faq. Also I have created a page template name faq and selected the faq page’s template to this.

Now the problem is the faq page always render default template, which is archive.php or index.php. I tried to change the template name to page-faq.php and page-{page_id}.php but failed to achieve desired result.

Is there any way to override default template in this case if I would not willing to change the page slug or post type.

Easy way to achieve this.

register_post_type( 'mypost',
    array(
        ...
        'has_archive' => false,
        ...
    )
);

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