Just a heads up, you're using kbin which is a different "website" than lemmy. You are also seeing a thread that originated in lemmy. That means both kbin and lemmy can see each other's content, but the website UI is different between them so if you read about some UI element and can't find it in kbin that might be one of the reasons.
That being said, kbin also has a sidebar with useful information. In the mobile site you can find it at the very bottom on the page, since it doesn't fit to the side in such a small screen.
I'll stand by the idea that people were not mad about the API going paid, they were just disgusted by the way spez managed the whole situation. This was a PR nightmare from the beginning and his competence as a CEO should be questioned after all this is done.