Айфон завис на логотипе Apple из-за приложения Telegram

If you encounter any challenges with third-party applications, the best course of action is to directly contact the app developer for further assistance. Here's a brief guide on how to do it:

1. Identify the app developer.
2. Visit their website or app store listing.
3. Look for their contact information or support channels.
4. Clearly describe the issue you are facing.
5. Provide any necessary information they may need.
6. Follow their instructions and provide feedback.
7. Be patient and follow up if needed.

By reaching out to the app developer, you increase your chances of receiving accurate and personalized support for the challenges you're experiencing. To contact an App developer --> How to contact an app developer - Apple Support

Telegram is not an Apple product. Contact the app developer here --> App Support or Telegram support

After you update, restore from a backup, or erase your iPhone, iPad or iPod touch, your device displays the Apple logo with a progress bar. Read more

Apple logo with progress bar after updating or restoring ...