For me, fitgirl installer does not work with wow64 (where you do not have to install 32 bit libraries). I had earlier also tried with wine-wow64 package from chaotic aur repo, and it did not used to work back then, and now arch linux has made the default wine package wow64 version. This has benefits (smaller package size, you can disable mulitlib repo, etc), but now installer does not work. It gets stuck as soon as any decompression is about to begin. And to me not much is clear. My guess is the freearc compression that fitgirl uses, its decompressor does nto work in wow64. Has anyone else tried for whom it works? Maybe I have to add a separate dll for this and create a override. Fitgirl faq does not mention it (probably since wow64 is still relatively new).

If this is not a right community for this, then sorry, I do not know of a better one. (wine team would not handle requests related to pirated installers, fitgirl or related communities in general do not do linux much, and of them, only a small fraction would be using wow64)

For testing purposes, You can grab almost any installer, I went and sorted by size (smallest first) and got it, and it does not work. (I am not going to provide link here for somewhat obvious reasons)