It appears that apple has changed how .app files launch. You'll have to grab Love 2D and install it and then open the .love file in the Linux Folder.
Love2D Website: https://love2d.org/
so.... in which one should I click to download because it says it can't be opened bc they can't check if it is malware free
The website has a version on the page that is:
I do not own a Mac, so I can not provide more support than pointing you at the download from the love2d website.
