That's because they don't want to deal with "Steam sucks!!!" posts from people who want to run some game that has hardcoded file paths assuming Windows behavior.

I totally get this.

A very long time ago I was trying to debug a flash website that had been created on a case insensitive Mac or Linux and was breaking on Linux without the source.

Not that long ago I was tasked with cleaning up a Git repo, created on a case-sensitive Mac, that had multiple files with names that collided when checked out on a case-insensitive Mac. That ordeal made me want to hang up my keyboard, move to the country, and spend the rest of my days fixing power lawn equipment.

yuck, I had to deal with something similar once, made double fun by the code being a hot mess of JavaScript dung... original dev was on Windows, new one was on Mac and let's just say it was "fun" tracing through all the upper/lowercase nonsense that wasn't consistent anywhere. PHP can fall into similar traps and I think Java as well...

"It just works."™

I hit this a couple of days ago. I deployed a Sqlite DB from Windows named Orders.db. Code ran fine on Windows. All the code refers to it with a capital. On Linux it passed the "file exists" check and then borked trying to open it. I renamed it to orders.db and everything was OK in the world again.

It is ridiculous because steam linux exists and runs on case sensitive filesystems with no problem. why does only mac get the error? It does not make any sense.