For this opinion to be valid, there has to be some measure of inhibition on ATJ's part to suggest she'd remove nudity from a role requiring nudity and well, we have the opposite on display. Like, Northman, that could have been an easy removal at her request, as it wasn't necessary at all. Perhaps even in the Witch as well, given her age. And her see-through shenanigans in Emma. definitely could have been vetoed with ease since they'd just have to get less transparent clothing for her to wear. And yet, we got the nudity and a fairly transparent shot of her breasts. Then there are her public displays left and right. And her request to literally do the Mermaid role, which by default is topless. A role that, yes, she was denied by Eggers. This has been confirmed by her. Lying to support your viewpoint only hurts it.
As for the comparison to Florence Pugh, ATJ is more classy. Obviously. And Florence, not so much. Again, obviously. So, the comparison is meaningless. And really, what one actress does (or does not) never has any bearing on what another does (or does not), so I see no reason to bring it up unless you have some reason for them mirroring each other. For example, let's look at Sydney Sweeney and her Euphoria co-star, Zendaya. One is topless a ton, the other is not. And despite working closely together for years, that has never rubbed off on Zendaya.
If you want to be pessimistic despite all available information, I mean, sure. But facts are what they are. And until an interview or something comes out where she specifically says she is against nudity, etc., your viewpoint really has nothing to stand on.