There haven't been native versions of FM for Mac for a long long time. Mac users wanting to run FM employ Windows in a VM like Parallels or similar products.
No. FrameMaker has been Windows-only for a long time.
But, don't despair. You can create a virtual machine with a program like VMware Fusion (Parallels and BootCamp are other options) and then install Windows. Once in Windows, FrameMaker works like a charm. I've been running FrameMaker on my Macs with VMware Fusion for years.
I normally run Fm full-screen but wanted you to see that I'm on a Mac, so I'm in Single Window view for the screen shot.
Same here...I haven't owned a Windows machine in many years.