This page says IV-SDK .NET is "Not compatible with Linux", but I've been able to use it on Linux via running GTAIV in Bottles rather than Steam. What I did was:
Set my Bottle's OS to Windows 7
Install .NET framework 4.8 on the Bottle
Set the OS back to 10
Using Protontricks, it's also possible to do something similar with the Proton prefix Steam makes for IV.
https://gillian-guide.github.io/mod-dependencies/
This page says IV-SDK .NET is "Not compatible with Linux", but I've been able to use it on Linux via running GTAIV in Bottles rather than Steam. What I did was:
Using Protontricks, it's also possible to do something similar with the Proton prefix Steam makes for IV.