We all bring our baggage to screenings.
Like you, I am squeamish, and will look away at depictions of gore and violence. The other evening I watched the European cut of THE SHINING, and I still looked away when Dick Halloran got axed–and I know exactly when it is coming, and how it is shown.
My husband is different–he can eat dinner while watching surgery shows, and longs for the horror movie that makes him turn his head away. He is a connoisseur of the SAW film franchise, and can discuss these movies akin to the way I discuss Mankiewicz movies.
But I would argue that being squeamish is one category of response (a bodily reaction), and being prudish is another (a moral reaction). A person can be squeamish about depictions of gore, violence, and even sex, but have a different moral response to the depictions of such things, as well as to the characters engaging in them.
Anora engages in survival sex work, which may be the best option that she has in her present circumstances. Full disclosure: during my career, I have known and worked with many individuals who engaged in such work. The reasons they did so were complex, and never could be boiled down to the pronouncement “They were slutty, and had no decency.”
Anora engaging in survival sex work may (and does in the film) create problems for her, but those problems are not of her authorship alone. I wonder if what you describe as being “too much of a prude” comes as a consequence of understanding Anora as a totally autonomous agent, who chooses to engage in survival sex work, when, at the same moment, there are other, better, more decent options within easy reach, which she rejects for lascivious reasons.