Given that it's an entirely for-profit company, I think you'd be surprised to learn that X (formerly Twitter) actually engages in speech that's allegedly noncommercial.
But so holds the Ninth Circuit today, in an opinion by Judge Smith that's joined by Judges Bennett and Johnstone.
I wouldn't be at all surprised if this isn't the last word on the matter. The opinion's about X's content moderation policies -- quite a hot topic, these days. I suspect you're going to see some votes to take this case en banc and perhaps some Supreme Court interest as well. (That said, because conservatives tend to think support X's views on these matters, as well as X generally, there's likely to be a fairly strong political split in how the various judges approach this thing.)