VideoCommon: Prefer D3D11/12 over OpenGL on Windows.

[jordan-woyak]

Modern hardware has better performance with D3D.
Outdated hardware has better compatibility with D3D.

Uninformed Windows uses are leaving performance and compatibility on the table with OpenGL defaults.

[AdmiralCurtiss]

I think this is a reasonable change, anyone have anything against this?

[degasus]

I'm unsure about the order of D3D11 vs D3D12, but it makes sense to place OpenGL after them. The decision to set OpanGL at the top is roughly 10 years old and outdated.

[MayImilae]

OpenGL was last updated in 2017 with 4.6. Modern hardware isn't going to target or focus on an API that isn't getting any updates, so OpenGL is going to get progressively worse over time. So I'm fine with demoting OpenGL from default at this stage.

Vulkan might be nicer as a global default, since it is basically our backbone graphics backend as it is the only one that's on all platforms that we support. How is Vulkan performance across modern Intel/AMD/Nvidia GPUs?

[jordan-woyak]

Intel integrated graphics is still in the wild that will not work with Vulkan or D3D12 at all, and can be questionable with OpenGL.

Vulkan might be better on some systems, and D3D12 might be better on some systems, but I think D3D11 is going to give almost every Windows user a satisfactory default experience.

[mbc07]

Also, some old Intel iGPUs on Windows (from 3rd to 5th gen CPUs) can only render "properly" with D3D11, being completely broken with our other backends even when the driver claims support for the other APIs...