clarry: As expected, GOG haven't fixed the GL extension string bug in SoF2 (I didn't seem to be affected in SoF1). So you need patch it yourself:
dd if=/dev/zero of=SoF2.exe bs=1 count=1 seek=987627 conv=notrunc
sha256sum SoF2.exe (after tweaking):
2729b68fe5a36d44a8816e3dfd1f47d2089b5f9aea573785a9450d100312e049 SoF2.exe
This is very helpful, but unfortunately I don't know my way around hex editors like I should. Is there a pre-patched .exe available for download somewhere? I googled it but I'm not finding anything.
Also, for anyone who is interested, the way I got SOF 1 to work was by going to the following link and reading comment 22. Until NVIDIA issues a fix for this, this workaround seems to be effective.
https://bugs.winehq.org/show_bug.cgi?id=44395