Driver installer overlooks discrete GPU when an integrated one is also present.

[username-generic]

System configuration:

• Fedora 42 Workstation Edition
• Intel Core i7-7820HQ (AMD64, has integrated GPU)
• Nvidia Quadro M1200

Issues:

1. GPU driver checker reports no issues, only having checked for the Intel GPU driver.
2. DaVinci Resolve has issues with media (projects not loading, blank previews, VRAM shortages on imports).

Workarounds:

• (Issue 1) Install the missing GPU driver manually.
• (Issue 2) Set the following environment variables before running DaVinci Resolve:

__NV_PRIME_RENDER_OFFLOAD=1 
__GLX_VENDOR_LIBRARY_NAME=nvidia
# These force usage of the Nvidia GPU; not sure if similar variables would be necessary for other vendors.

Proposed changes:

• (Issue 1) Add support for detecting multiple graphic cards.
• (Issue 2) Add support for generating local .desktop files, with extra environment variables, when needed.

Also, I see you're rewriting the application to Flutter. I'd love to contribute once that code becomes available.