How to solve the problem with including style.css in Wordpress?

Question

css

The situation is as follows, I am transferring a simple layout to Wordpress.
In the theme folder, I created all the necessary files, including style.css and functions.php.
I wrote the following in functions.php.

<?php

  add_action('wp_enqueue_scripts', 'test_media');
  
  function test_media(){
    
    wp_enqueue_style('test-main', get_template_directory_uri() . '/style.css');

    wp_enqueue_script('test-script-main', get_template_directory_uri() . '/assets/js/script.js');
  }

He also wrote like this

function test_media(){
    wp_enqueue_style('test-main', get_stylesheet_uri());

    wp_enqueue_script('test-script-main', get_template_directory_uri() . '/assets/js/script.js');
  }

Style.css is in the same folder as functions.php
Admin sees these files in the editor, but for some reason does not apply.
The cache was deleted, it's definitely not in it. through F12 you can see that the default css style is applied, not mine.
Help solve this problem.

Answer 1

Thanks everyone for helping.

<?php wp_head(); ?>
<?php wp_footer(); ?>

Answer 2

Sorry for the stupidity. Connect immediately in the header as per the standard