Can't really stop supporting it, it's integral to my day job. And Epic isn't going to be moving away from it any time soon given they just implemented the most advanced geometry and lighting systems in any game engine ever (look up Unreal 5 "Nanite" and "Lumen") which heavily leverage DX12.
I'm sure they will support it in Vulkan but I doubt they will drop DX simply because it's also necessary for Xbox support and having things render relatively "the same" between PC and Xbox is not something they'd want to give up (even if they made Vulkan the main renderer).
That said the more I thought about it and looked into what they've done with Atlas it seems like I'd inevitably be re-enabling a ton of stuff just to set up my development machine.
Idk man. Seems like your use case is rather specific. The playbooks are just xml files zipped. You could probably jack around and make a specific build that's for you. I'd checkout Criss Titus Debloat script it's also super good. I use that for certain clients. This is a much deeper heavy handed solution.
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