Making a Div element accessible to voice over on Mac

I am struggling to make the div with aria-label accessible.

<main>
    <h1>Heading</h1>
    <input type="text" placeholder="text">
    <p>Lorem ipsum dolor sit amet labore culpa! Ipsam.</p>
    <div role="region" aria-label="content summary">
        summary
    </div>
    <button>Go back</button>
</main>

I tried aria-describedby and aria-labelledby, but those did not work either.

>Solution :

Without the tabindex attribute, a <div> element is not inherently focusable. This means that most screen readers, including VoiceOver, may not navigate to it.

Here’s how you can ensure that the VoiceOver reads the div:

<div role="region" aria-label="content summary" tabindex="0">
    summary
</div>