[Bug 41585] Unreal Engine games assume OpenGL under Windows XP even when only DX11 is available

https://bugs.winehq.org/show_bug.cgi?id=41585

--- Comment #17 from [e-mail] ---
(In reply to C0rn3j from comment #16)
> I made separate reports for Rogue and Streamline and changed the title.
>
> If someone can confirm that this is normal UE behaviour I'll close this as
> invalid.

According to the UE4 FAQ:

https://wiki.unrealengine.com/Common_Questions_and_Answers

Q: Does UE4 support DX9? What about WinXP?

A: Unreal Engine 4 supports DX10 / OpenGL 3.3 and above, but it does not
support DX9 at this point. If you are looking for DX9 support due to DX10+ not
being available on Windows XP, then OpenGL might be a better route to get
higher end rendering features.

It would appear that this is a sort of fallback feature for UE4...