Granted, I've skimmed, but I'm genuinely not seeing it [1].
The closest is this study [2], which counted how many times thirty-eight women "who self-identified as having experienced unwanted or non-consensual sexual experiences in relationships" and were "recruited via social media," when "given the opportunity to reflect on their experiences of [intimate partner sexual violence], with prompting to speculate about their partner’s motivations or any underlying causes for the violence" mentioned pornography. That's...that's not a study.
[1] https://www.collectiveshout.org/research
[2] https://journals.sagepub.com/doi/full/10.1177/10778012209713...