The only success I’ve ever had with virtualizing MacOS on a non Mac host is using VMWare Workstation with some unofficial patch to make it think it was running on a Mac host and enable the option to run a macOS guest. And that took a bit of faff to get working too, no idea if it still works as a method

Those were not considered social media in their heyday as the term was created after them specifically for sites where a user would maintain a non-anonymous profile, post content about themselves and curating a feed based on other profiles followed.

Forums and Usenet could be considered proto-social-media perhaps given they were clear precursors to it

Witness me!

Or maybe an Andgasm for the logically inclined