I have no idea how exactly FF uses GPU. However, all 3D APIs, especially modern ones, are just ways to access the functionality of underlying GPU hardware, which doesn't depend on the OS.
If FF uses Vulkan, the direct equivalent of that query is probably VkFence, but unlike D3D11 VK has other ways too, subpasses and VkSubpassDependency, and maybe something else I forgot.
I have no idea how exactly FF uses GPU. However, all 3D APIs, especially modern ones, are just ways to access the functionality of underlying GPU hardware, which doesn't depend on the OS.
If FF uses Vulkan, the direct equivalent of that query is probably VkFence, but unlike D3D11 VK has other ways too, subpasses and VkSubpassDependency, and maybe something else I forgot.