The funny thing is most games in my library say they won't run on macOS because they're 32-bit applications, and they won't show up in my library when filtering

The funny thing is most games in my library say they won't run on macOS because they're 32-bit applications, and they won't show up in my library when filtering by "Mac". But they all run perfectly fine, so they're obviously 64-bit. I think I heard once that they all default to 32-bit unless the developer says otherwise...