What is the exact reason for app rejection in the App Store?

Question

Apple App Store

What is the exact reason for app rejection in the App Store? They sent me such a letter with a rejection as below .. I have already replaced the video preview of the video and replaced the screenshots and I can’t understand what the problem is. Tell me please.

From Apple 2.3
Performance: Accurate Metadata
Guideline 2.3.4 - Performance - Accurate Metadata
Your app previews include content that does not sufficiently reflect the app in use. Specifically, your previews:
- Show footage other than the app in use.
Next Steps
To resolve this issue, please revise your app previews to only use video screen captures of the app, narration, and textual and design overlays.
Resources
For resources on creating great app previews, you may want to review the App Previews page. For more general information on how to make the most of your app's App Store product page, please see the App Store Product Page information available on the Apple developer portal.
It would be appropriate to address the encountered issue to comply with the Guidelines.

Answer 1

Actual?
Can you watch the video? They do not specifically say, as far as I understand, they simply copy from their requirements.
In particular, it is necessary that the video describes the use of the application, as well as that the video only contains a screen recording of the application. How was the video recorded? Maybe upload it to youtube?