This. A 1000 times.

Nobody really wants to focus too much on build configurations when working on things, they should 'just work'.

And CMake, although I am using for a long time already, is not the offering this 'just works' experience I am afraid. It is so easy to introduce side-effects, and figuring out the intended way to include a project can be a big pain when documentation is sparse. Sometimes I wished I had a CMake debugger. And with modern CMake I feel like this got worse to some degree.