Any specific things? I've seen a lot of broscience floats around about porn's effects, especially around chemicals like dopamine, so it's worth checking further before believing any of it. That isn't to say lots of the claims aren't plausable, but they also might not be reliable.

I'm no expert, but some other concerns I've heard are that porn normalizes unrealistic expectations of sex and promotes misinformation (imagine how someone who only learned from porn might handle issues like consent, preparation and aftercare). I could see those continuing to be an issue with written, rendered and generated porn. But IMO those would still be a huge improvement over the abuse of participants associated with the porn film industry.