Facebook to restore chronological feed of posts from friends

Are we starting to see tech companies worried about how stable their userbase is instead of how much they can grow and get attention from people?

In a time of growth every bit of extra activity is great. If you run hot and burn out someone, but attract ten users in the process, great!

But if growth is slow and you are shifting gears to keeping users around, having a time based feed is more sustainable?

I'm just guessing here, but I wonder why Facebook is making this after so many years of people asking for it. They just backtracked on Facebook accounts for Oculus as well.

I still have FB and IG accounts, but I don't use them much anymore. The non-chronological feed on both sites eventually required either lots of effort (do all of posts, videos, stories, replies, likes, etc. all the time) for organic visibility or pay for visibility. I get why that increased revenue (spend money or spend time), but as a casual user I don't care enough to do either at the scale required, so eventually I got disinterested.

Didn't Zuckerberg say that doing this would cause a really overwhelming firehose effect or something?