LinkedIn didn't originally have a feed. Once it was implemented more and more people started using it as face book.
In the last year I've seen:
-
A video of 3 people killed by a lightening strike, with some weird business wisdom tag line underneath.
-
Many, many people arguing about the existence of Israel.
-
Lots of anti woke "it wasn't like that in my day, bunch of snow flakes" comments.
Back in the day you'd have to join a group to post something. The groups were all related to business concepts I.e. Dev Ops in Asia.
Now it's a shit show that should be avoided.
I only use it for job adverts these days.