https://bugs.winehq.org/show_bug.cgi?id=52240
--- Comment #8 from nekoNexus@protonmail.ch --- Ah, I'll keep that in mind; thanks.
As for your question, this (in addition to the other options [using Wine Staging 7.0-rc1]) did make the program run properly, but a key function of the program was not working - though this did not produce an error, it just seemed to not load the game's save files.
As for the folder path being "invisible," as I mentioned before: turned out that it was actually a font coloring issue for some reason; the font for that field just misbehaved and rendered so dark that it is VERY difficult to notice unless you get very close to your screen.
I'll make a separate issues for these.