Ask HN: Was Google Domains Hacked?

I have 3 domains that end in .app and all of those were changed the nameserver from Cloudflare to nsone.net. I only noticed the change because Cloudflare warns me by email. I have another domain that does not end in .app that still intact. My e-mail is secured by 2FA, so it may be some kind of attack specific to .app domains. Has anyone with the same issue?