Modify ACF oEmbed field to add attributes.

oembed_add_attributes_to_iframe.php

/**
     * Add custom attributes to oEmbed iframe src
     *
     * @param string $iframe
     * @return string
     */
    public static function oEmbedIframe($iframe) {
        // Use preg_match to find iframe src.
        preg_match('/src="(.+?)"/', $iframe, $matches);
        $src = $matches[1];

        // Add extra parameters to src and replace HTML.
        $params = array(
            'showDescriptions'  => 0,
            'autoPlay'          => 1,
            'autoMute'          => 1
        );
        $new_src = add_query_arg($params, $src);
        $iframe = str_replace($src, $new_src, $iframe);

        // Add extra attributes to iframe HTML.
        $html = str_replace('frameborder="0"', 'frameborder="0" allow="accelerometer; autoplay; muted; encrypted-media; gyroscope; picture-in-picture"', $iframe);
        // Display customized HTML.
        return $html;
    }