Additional clarification:
No one lost a verification badge today–If you received an email that your channel will no longer be verified, this was just an advanced notice & you can appeal
The checkmark has never appeared on YouTube mobile channel pages (this will be added soon)https://twitter.com/TeamYouTube/status/1174735005215420416 …
All I use is the mobile app to watch YouTube. Stop pulling the wool over our eyes and admit that you made a mistake, because the checks were seen on Android phones.