.app domain released to the world
Ir's May 1st and Google has released .app domains for purchase by the general public for an additional early access fee (it's only been available for purchase by trademark owners until now).
May 1 - May 8: Anyone can register available .app domains for an extra fee (known as the "Early Access" period)
In 2015 Google paid $ 25 million to ICANN for .app: https://www.marketwatch.com/story/google-pays-25-million-for-app-domain-2015-02-27
Looks like lowend.app is still available.