As of right now, this thread and one update from a twitter user, https://twitter.com/SiteRelEnby/status/1468253604876333059 are all we have. I went into disaster recovery mode when I saw our traffic dropped to 0 suddenly at 10:30am ET. That was just the SQS/something else preventing our ELB logs from being extracted to DataDog though.
Some 3600 people have hit that button in the last ~15 minutes.
When Facebook's properties all went down in October, people were saying that AT&T and other cell phone carriers were also down - because they couldn't connect to FB/Insta/etc. There were even some media reports that cited Downdetector, seeming without understanding that they are basically crowdsourced and sometimes the crowd is wrong.