Jill’s story is a tragedy of truth-telling. She tried to expose Umbrella legally, and they destroyed her city. By the end, she realizes that Umbrella cannot be beaten by the law; they must be destroyed. The ending of the game sees her leaving Raccoon City as it is decimated by a nuclear missile (authorized by the US government to cover up the incident), setting her on a path of vigilantism in future sequels.
The game does not have a simple toggle in the main settings menu. You must use a launch argument. Fortunately, the process is simple and applies to both the Steam and Microsoft Store versions.
: While DX12 can offer higher average frame rates on newer hardware, some users report significant "stutters" and lower minimum frame rates compared to the rock-solid stability of DX11. System Requirements
Technical background: what “DX11” means here
: Many popular community mods, including VR and costume mods, were built for the original DX11 engine and often require this version to function correctly.
Compatibility and platform support