Steam removes my standard downloads folder on restart

I don’t understand this question. How does what work?

So does the mnt folder lead the files to the hard drive when you download them? Or is there something else?

Maybe it’ll be easier for you to understand this:

Think /mnt/HDD2 to be your D:\ drive on Windows. So on Windows, that HDD is mounted to the D:\ “folder”. Even in Windows, you can assign your HDDs to different letters. Whereas your main drive is C:\.

On Linux, you can technically make your HDD mount to any folder you want. Even if it’s /home/thisfolder/thatfolder/thisone/HDD2

But as long as it links to the HDDs UUID, it works similar to Windows D drive?