iOS PWA push notification actions (yes/no buttons) not showing – any workaround?

I'm trying to implement push notifications for a PWA. Here's the relevant code snippet using PHP with Minishlink/WebPush:

use Minishlink\WebPush\WebPush;
use Minishlink\WebPush\Subscription;
$webPush = new WebPush($auth);

        $payload = json_encode([
            'title' => 'Booking Reminder',
            'body' => 'Do you want to book now?',
            'icon' => 'at.png',
            'url' => '', // optional default fallback
            'actions' => [
                [
                    'action' => 'yes',
                    'title' => 'Yes',
                    'icon' => 'yes.png'
                ],
                [
                    'action' => 'no',
                    'title' => 'No',
                    'icon' => 'no.png'
                ]
            ]
        ]);
        $webPush->queueNotification($subscription, $payload);

And here is the relevant part of my serviceworker.js:

self.addEventListener('notificationclick', function (event) {
  event.notification.close();
  let targetUrl = '[target URL]';
  if (event.action === 'yes') {
    targetUrl = '[URL 1]';
  } else if (event.action === 'no') {
    targetUrl = '[URL 2]';
  } else {
    targetUrl = '[URL 3]';
  }
  event.waitUntil(
    clients.matchAll({ type: 'window', includeUncontrolled: true }).then(windowClients => {
      for (const client of windowClients) {
        if (client.url === targetUrl && 'focus' in client) {
          return client.focus();
        }
      }
      if (clients.openWindow) {
        return clients.openWindow(targetUrl);
      }
    })
  );
});

This setup works perfectly on Android — the "Yes" and "No" buttons appear and function correctly.

However, the buttons do not appear on iOS (tried - Safari+Chrome).

GPT Response -

You're running into a known limitation on iOS: As of now, interactive notification actions (like your yes/no buttons) are not supported in iOS Safari Progressive Web Apps (PWAs).

Is there any known workaround or alternative to achieve similar functionality on iOS? The problem is critical for my app since most of my users are on iOS, and the yes/no decision is central to the user experience.

Thanks in advance!