In the outage affecting a number of Social Media sites today, only the few hundred X users were inconvenienced. The stats show the numbers of affected people and X were very few compared to the tens of thousands for other systems. Presumably reflecting fewer using X. Mastodon was unaffected.
From approximately 15:05 to 16:20 on 5th March there was an outage that affected logins on a number of systems including Facebook, YouTube, X, Meta Horizon Worlds, Instagram, Messenger and many others.
Status reports that there were over 267293 people reporting problems with Facebook at the time, while only 343 X users reported problems. This does not mean fewer people were affected on X. The login problem was a total block. Just means that hardly anyone uses X.
Other systems were also affected such as Instagram with 44134 users reporting issues.
Meanwhile, no Mastodon users had any issues at all. With their unique federated server model, there is no single point of vulnerability. To take Mastodon off the internet would require the failure or compromise of nearly 10k independent servers distributed around the world. That is a LOT of resilience.
There were a few rumours that the outage might be related to disruption of the Super Tuesday election event, but cyber security specialists think this is unlikely.