To answer the OP question:
No. Gag orders are a legitimate limit on the boundaries of the First Amendment. Justice sometimes requires that people shut up in order to ensure a fair trial.
Donald Trump is currently trying to intimidate officers of the court by insulting them on the Internet. That's not an acceptable use of free speech.
It's hard to see how Trump's speeches would do much to intimidate the officers of the court. A more likely scenario would be for the prosecution eagerly to use as many as possible of these comments against him as showing some supposed attempt by him to overthrow the government or something else in that vein.
Ironically (and this is now being acknowledged by almost every observer, even Democrats), the enormous number of indictments and court filings, etc. in both state and federal courts, nicely timed to interfere with the primary elections in early 2024, have already made his nomination for president virtually certain. He won't even have to campaign.
Had that NOT been the course of events, Trump very well might have been seen by now, although perhaps reluctantly so by some Republicans, as being 'yesterday's news,' and he'd have become just another commentator on the political scene not unlike the role Hillary plays.