I'm also having some similar problems and i think for both of us it might be DirectX related.

I can play about 1 hour or so and after that i get the DXGI error and the game crashes. I don't know what's causing it. FIFA 20 is the only title in the FIFA series that i have this issue with. I have not tried changing the DIRECTX_SELECT option in the fifasetup.ini but i don't think it would help too much.

My PC doesn't reboot.

Here's my specs

AMD FX 8300 octa core 3.3 up to 4.2 Ghz

16 GB RAM

GTX 950 - 2 GB VRAM

The game runs no problems with everything on ultra, i get over 60 FPS but i lock the framerate to 60 because it's smoother.

When the game launches does it launch in DX11 or DX12 ?

Also it's not the drivers since i'm using an older driver, it's the game engine i think. Other games for me work no problem using DX12 but only in FIFA 20 i get the DXGI error.

Will EA release a patch ?