1. Figure out why Dark Souls Remastered is launching through the wrong graphics card
I don't know how to figure this out, though

2. Set up GPU Passthrough
This is complex, and I also don't have a windows ISO to do it with

3. Wipe my entire computer, re-install windows, then re-install and configure my OS
This is a lot of effort

4. Save up for and buy a windows computer
I don't have any money and if someone bought me a computer I'd feel guilty