There’s another launcher that I’m forgetting the name of that will launch Epic and GoG games. Following that proton guide should make NTFS (windows) drives usable for anything in Linux though. I can boot games downloaded from “alternate sites” if I add them to steam as “non steam games” regardless of how the drive is mounted.
If you use this guide to mount the Windows drives you can run it and Linux side by side. It works just as good as Windows these days for 90% of games. You can add games downloaded from unofficial sites to Steam as a “Non-steam game” and it works. Installing Nvidia drivers on Mint is easier than Windows, there’s a built in utility.
I have a 2001 VW TDi, the radio is a standard Double Din so I just replaced it with a touchscreen bluetooth receiver for around $150.
I don’t see that happening. The US puts large tariffs on imported cars to stifle competition. That’s why if you look at Japanese cars in Japan or German cars in Germany they’re often much cheaper and more powerful than their American counterparts.