hstefan1

Why did Unity choose to focus on services like Analytics or Cloud Build, but seems to neglect important technical defficiencies like the input system, ancient mono runtime, or nested prefabs? Most of the services could be obtained with third-party products, but none of the neglected improvements have a satisfactory workaround.

Well, they started making blog posts about progress in those issues, but these problems were known for years already. I understand they could work on both things, but I don't understand why those problems were given such a low priority for all these years.

I don't think you are, or even that you could. It's certainly your responsiblity to use a generic input system in a way that suits your project, but it's the engine's job to poll devices, trigger input events and such.