XPS15 9530 display flickering and video card error

I've had my Dell XPS 15 9530 for less than a year (10.5 months or so), and since the 4 month mark, I've had issues with the display flickering (video attached below). I finally went to get it repaired last month, only to have it returned after 3.5 weeks after they replaced the screen, and for the same issue to immediately return. I'll be getting it looked at again, but I'm not necessarily optimistic, and I need this device for both my job and academics.

I've updated drivers repeatedly, I've run diagnostics (which, aside from once right after getting it returned to me, also came back "normal"), I've restarted my laptop, etc. all to no avail. Does anyone have any idea about what this issue could be and if there's anything I can try before sending it in again?