Sorry my reply is so slow >.< I wasn't on my PC at all over the mini Easter break. Unfortunately, I don't own a mac myself, so there's not much I can do to help other than point you towards this post I made for mac users. So far, it seems as though at least 1 of the suggestions on the list by other mac users often fixes things for those who are stuck with opening the mac versions, so hopefully, something on there will work for you if you haven't already found the post and tried any of em by now :3
https://melancholy-marionette.itch.io/darling-duality-winter-wish/devlog/227880/...
The post is under a different game, but the same things apply. I would suggest trying the 2nd suggestion on the list first (the one by the user named 'benevolent-beaver) because they originally posted their fix in the comments for Yandere Heaven, so it's the most recent suggestion :3
From what I understand, it's something to do with indie games and mac's security >.< Anyways, I hope you manage to get it to open :3