Consent to film is independent of intended use of the resulting recording. Whoever you are, pornstar or not, medium of recording, ... all these other factors are irrelevant. 25 years ago, would we be asking why someone made a sextape if it was released for sale without their consent?
No matter the circumstances, consent to use the resulting recording must be given for every type of use. For example, consent to put the recording on onlyfans for access to paid members only does not mean consent to post on the open internet or on any other paid streaming service like fansly.
In fact consent can also be far more restrictive. For example, one can consent to posting their recording on onlyfans for only 1 week, viewable to only the first 10 viewers.
It's important to recognize these distinctions in consent.