This is the app rejected error from Google Play console
Issues with submitted video
We were unable to view the video you provided in your declaration.
Your video should show the in-app feature’s functionality showing usage of location in the background, and how a user would trigger the prominent disclosure, runtime permission (with user consent), and feature in action.
Please check that your video is accessible, and/or modify your video to demonstrate the declared feature that requires access to location in the background then resubmit your declaration form via the Play Console.
I'm trying to find where I can upload or provide a link to demostration video for review, I'm not able to find
Can you please show me where can I provide a demo video for reviewers in google play console?
