Piracy: ꜱᴀɪʟ ᴛʜᴇ ʜɪɢʜ ꜱᴇᴀꜱ

I am interested in how pirates on the internet (which i am not) would get there hands on the files to a game, just, for example, Baldur's Gate 3, without torrenting? Now, I have heard tell of a place where these nefarious no-gooders would do this, for example gog-games.to. But, once they have acquired the file, what steps to these pirates take next? I have heard that .bin files come with these illegal files? How would one approach using those bin files? All out of curiosity of course. Thank you!