I think feedback windows is only for browsers as you can read in this thread 
https://github.com/getsentry/sentry-react-native/issues/500 as an option you can put it via feedback API and make your own global modal/alert
Sentry.init({
    dsn: 'key',
    beforeSend(event, hint) {
      // Check if it is an exception, and if so, show the report dialog
      if (event.exception) {
        Sentry.showReportDialog({ eventId: event.event_id });
      }
      return event;
    }
});
Example of sentry api feedback
let endpoint = 'https://sentry.io/api/0/projects/{your_organization_slug}/{your_project_slug}/user-feedback/'
let params = {
  event_id: ...,
  name: 'John Smith',
  email: 'johnsmith@example.com',
  comments: 'This app sucks'
}
try {
  await fetch(endpoint, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json'
    },
    body: JSON.stringify(params)
  })
  console.log('Feedback submitted!')
} catch (error) {
  console.error(error)
}