They just pull out of date downloads. There's not much info on Proton and Wine compatibility, because of the originally existing Linux version I guess, but I think there's a good chance that it will run fine.

just Mac and Linux? Tim Sweeney IIRC hates everything not PC

Let's not succumb to the redmondian propaganda that Linux isn't PC.

I thought the Windows=PC "othering" was more of an Apple initiative, like in the "Get a Mac" campaigns

Should have said 'not Windows'

I meant the Mac and Linux version was removed from Steam too

The game haven't had any meaningful update for years and it was unplayable on modern Mac since they moved to 64bit only https://steamdb.info/app/310080/patchnotes/