The linked article isn't enough to convince you? Look up Gab or Parler. (Yes, I find most of the speech there reprehensible. No, I don't think they should be denied the right to publish and distribute an app.)
Using a social media app instead of a website, as most people do, means that everything you are seeing has essentially been pre-approved by Apple and Google.
If the tide swings even a little further to the right on X, expect the X app to be banned as well. I was secretly hoping that it would be banned when Musk took over just to remind the right of why centralized app stores are a terrible idea. But with ICEBlock the left has finally been alerted to that fact as well, which might be even more beneficial to the cause of software freedom in the long run, since the left is generally less afraid of the proper solution to this problem, regulation.
In the meantime, keep using web apps instead of native apps.