Valve is investing a lot of resources in Wine/Proton. dxvk is being actively maintained which is very good. Same with Vulkan.
For how long do you think this can go on? I can’t think of it as a profitable venture which is unfortunately necessary for a project to have a long life. Especially with many newer AAA games not having Wine compatibility (correct me if I am wrong here) because of reliance of DirectX 12 or some ring-0 level anticheat. With the hegemony of Microsoft on consumer PC market and especially PC gaming, I don’t know how long the current momentum will persist, though I am grateful for the work done so far.
There has been some new collaboration from laptop vendor Lenovo with Ubuntu and Red Hat: https://www.forbes.com/sites/jasonevangelho/2020/06/03/lenovos-massive-ubuntu-and-red-hat-announcement-levels-up-linux-in-2020/#195aa3817ae0 I think news like this might occur more frequently. At least I hope so.