This is reductive to the point of absurdity. Situational friends are still friends. How many of your elementary school friends are still your friends these days? High school? Summer camp? Heck college friends? Unless you're living in the same town with the same people, there's a good chance that most of them aren't anymore. Were these people also not your friends? When you leave that book club, when you stop showing up at the corner cafe, when you move out of the neighborhood, how many of those people will you still be spending time with 5 years later. For the ones that you aren't, were they also not really friends?
Friendship isn't a binary thing. Not every friend you make will help you bury a body, but not every friend or friendship needs to (or should) run that deep. And sure not everyone you're "friendly" with at work are friends, it's a spectrum. But situational friends are friends. People you bond with for a short while over a shared experience and then when life moves one or both of you on the friendship ends are still friends.
In my opinion I consider a friendship any relationship where no matter how long ago it ended or how long ago you last talked you wouldn't mind hearing from them again, even if it might only be awkward small talk. Old schoolmates, college roommates, military squadmates, and co-workers can all be friends. They can all be acquaintances too. But crucially the fact that you stopped talking at one point or stopped spending time together isn't the demarcating factor between the two.
It's been this way for years
> Work friends are not friends.
Another dumb thing about this statement: It is just so situationally and culturally dependent. In many companies and cultures, it is quite normal to make good friends through work. One generality that I find true across many different situations and cultures: If you work in a generally low competition job, you are much more likely to make friends from work. The more competitive the job becomes, the less likely you are to make (and keep) friends from work.Some even married coworkers. New jobs but still married