I noticed it first when some services like the store on my Oculus Quest stopped working. They still seem to be down though the installed apps like Youtube seem to be working fine and can connect to the Internet.
Fascinating story. I would not have believed that a company as large as Facebook would experience something like this unless it was some hugely sophisticated cyber-attack. But at least as now the cause appears to be linked to an update in something called the Border Gateway Patrol.
This raises some larger regulatory questions too. Companies like Facebook along with Microsoft, Amazon,Google and Apple are now so large that they can be considered part of the infrastructure of modern life. There is definitely a public interest in minimizing the likelihood of future outages and it will be interesting to see what the US and other governments will do about it.