how do you feel about still having to use outlook because of concerns about a competitor that's not even doing social anymore? I've read FB SWEs be aghast about people uploading whiteboard photos to Google Photos to be searchable later, paranoid about Larry and Sergey poring over all the data while twirling their evil mustache.

Also, if impressing other people is not what you're optimizing for then you might not have a great trajectory at a company that's obsessed with i m p a c t and hallucinating metrics to measure it.

Some parts of working at FB as a SWE are awesome, some aren't, everyone's mileage certainly varies.