I've used both platforms regularly over the years, and I have mixed feelings about both. I mean they both have some truly excellent content, but so much utter trash. There should be some kind of quality control.

They make it reaaaaally hard to find the good stuff. Many courses are time sensitive (e.g. there's no point in learning a 20 year old version of PHP), but they frequently lie about when a course was created which makes it impossible to filter out old stuff.

There are so many courses that could benefit from more interactive tests/quizzes, but it's usually limited to solving a few ridiculously simple multiple choice questions. I'm not sure if that's a platform limitation or a course creator limitation.

So much of the content is extremely stale, and it even matters for languages that you would think are relatively unchanging.

It seems like they must have put almost no incentives in place for the instructors. Setting up a course must take even more effort than running a full semester course in their own school, but since no one is making new versions Coursera must not be paying them like it, or offering equity in the platform. I imagine that teaching students in person is also a lot more rewarding,

I haven’t taken any recent online courses, but EdX looked like it might still be good.