Same with Godot. I'm writing a desktop app, and I get cross-platform support out-of-the-box. I don't even have to recompile or write platform-specific code, and doesn't even need Win32 APIs.

One aspect I wonder about is the move of graphics API from DX11 (or OpenGL) to DX12/Vulkan, while there have been benefits and it's where the majority of effort is from vendors they are (were?) notoriously harder to use. What strikes me about gaming is how broad it is, and how many could make a competent engine at a lower tech level, but fits their needs well because their requirements are more modest.

I also wonder about the developer availability. If you're capable of handling the more advanced APIs and probably modern hardware and their features, it seems likely you're going to aim at a big studio producing something that big experience, or even an engineer at the big engine makers themselves. If you're using the less demanding tech it will be more approachable for a wider range of developers and manageable in-house.