Having the same issue. I can't open it or close it. It just crashes and throws an error when I open the app. Thought it might be an OS/Hardware issue (I'm running a very modded mac pro) but the previous version runs flawlessly, as does Illustrator 2021. My GPU is old but it still meets more than the minimum requirements and I've got twice the RAM and an 8 core processor so I doubt my hardwares the problem... Working on 2020 for now. You can download all the older versions through the CC app.