Particular meta tag - viewport - insertion when dealing with plugin

Question

I am dealing with a plugin, not with a theme, but what I want is to include this meta in the head section.

<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1">

I browsed this link, but this link is also not helpful.

I believe it is doable through hooks and filter somehow.

w/o this meta tag the content is shrinking, including fonts getting minimized.

Answer 1

Cant you just use the wp_head action for this? I mean something like this:

function add_meta_tags() {
?>
  <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1">
<?php }
add_action('wp_head', 'add_meta_tags');

Should work perfectly.