The functionality is still there, but they've made it harder and harder to access. It used to be an obvious choice. Then it was buried in options, then deeper in options, and now I can't even find it any more. However, if you add the magical "?sk=h_chr" to your Facebook bookmark you'll get a chronological feed (at least until you click on the icon to go back to the top so refresh instead).

I'm sure they'll completely break it some day. They broke it briefly once already. Since I was working at Facebook at the time I filed a task on it. The response was the rudest I ever got in 3.5 years at the company. If it works, as long as it works, it's basically by accident (or because some front-end developer is resisting management's constant pressure to deprecate it).

Is the culture at fb really toxic like that? Like surely they can't possibly claim 'we take feedback seriously! :D' and then ignore the hoardes of screaming masses who are being held hostage by a monopoly where the platform pretty much literally owns their social graph

It is still working. But no, uncurated chronological feed is just too dense for me.

I’m pretty sure Twitter switches you back to the algo feed after a certain amount of time (or at least they used to).