One Wine related project I completely missed writing anything about is DXVK [GitHub], a Vulkan-based compatibility layer for Direct3D 11 for use with Wine.
I've been keeping an eye on it, but I only realised today I've not even put up even a most basic article letting people know it exists. It's seeing rather fast-paced development too, with a new version being released only yesterday.
The latest release has added in: Improved support for deferred contexts, Initial support for some D3D 11.1 features, Clipping and Culling planes, an on-disk pipeline cache and more.
It's intended to work with Wine 3.4, to hopefully give you better performance in certain games run through Wine. It's like the VK9 project [GitHub], which is aimed at Direct3D 9 although DXVK has more people working on it and much faster development.
I'm now subscribed to their feed, so I will keep up to date on each new release as it comes in.
It's interesting to see what will become of this, since the Wine developers are working on their own Vulkan implementation.