wp_get_attachment_image_url()

wp_get_attachment_image_url( int $attachment_id, string|int[] $size = 'thumbnail', bool $icon = false ): string|false

function wp_get_attachment_image_url( $attachment_id, $size = 'thumbnail', $icon = false ) {
	$image = wp_get_attachment_image_src( $attachment_id, $size, $icon );
	return $image[0] ?? false;
}