@m16857 - The Mac version of the game works on suitable hardware provided one's operating system is Mojave or lower; we're all waiting for the new update EA is still working on that will make it work on Catalina to see what it does for us. But "works" and "works well" are two very different things and the current version is still held back by its draconian 2 GB RAM usage limitation that was overcome on Windows many years ago with Patch 1.17.
The PC specs you have listed are way over the top for what TS3 can possibly use and the entire game (all EPs) should run fine, or as fine as it's ever going to, on it. I'm not familiar with Planet Coaster, it does have higher basic requirements than either Sims game, but looks to me like that should be more than fine as well.
