"If you were given the Moderna booster and you were not informed about this risk of myocarditis, does it still qualify as informed consent?"

No. A great many side effects discussed and well known by health authorities in the USA were not divulged either, and this is clearly an intentional misrepresentation of the jabs, not only as vaccines, which they were absolutely not, nor ever tested to see if they were, but also as safe, again, which they were not, and known by regulators not to be.

"Is not providing people with informed consent actually a crime?"

Every one of the Nuremberg Principles was violated by the coercive and deceptive marketing for the jabs, each of which is a crime against humanity, exacerbated by the genocidal breadth of commission against the entire population of the world. I do not think there is enough rope extant today to hang all of the murderous criminals guilty of these crimes yet awaiting arrest, lawful prosecution, and just conviction of their myriad murders.

Almost all chattel will strive to excuse or rationalize away these crimes, because it conflicts with their need to be members of a strong social group, and they are afflicted with disabling cognitive dissonance arising from their being deceived by Machiavellian manipulation by psychopaths highly competent in deception and profiteering from atrocity.

Samuel Clemens, aka Mark Twain, is oft credited with the aphorism that correctly observes it is far easier to fool someone than to convince them they've been fooled. All of us have been fooled, at least at first, and but the minority have managed to overcome their cognitive dissonance to accept that they have been fooled.

God help them that yet remain so deceived, because until they accept the truth, only God can.

Thanks!