Sorry for this silly question but I am wondering how I can install the .cube LUTs into Capture One Pro? The instructions on the internet tend to talk about the .costyles files.
maybe this https://lutify.me/support/knowledge-base/article/how-do-i-apply-luts-in-capture-one/ and/or this https://www.slrlounge.com/how-to-use-lightroom-presets-in-capture-one-jailbreak-your-presets/
You can't use them directly, but 3dlut creator lets you convert them to ICC profiles. Have a look there :