X is not a good representative to free speech.

1. It censors some topics. Just for fun, try to write something about Israel-Gaza, or try to praise Russia and compare the likes/views with your other posts and over the next week observe how these topics is impacting your overall reach even in other topics.

2. X amplifies your interests, which is not objectively true, so if you are interested in conspiracy or Middle East, it pushes you those topics, but others see different things. Although its showing you something you are interested in, in reality its isolating you in your bubble.