I wonder what we might call such a convenient arrangement...

The frameworks make everything easier, more portable, more future-proof, more extensible, and quicker to develop. The only cost is that it's all slower and less elegant.

  cpu
  which does abstraction and containers
  OS on top
  a container on top
  an application toolkit
  a cross platform development framework
  a browser embedded inside
  with containers
  with a javascript vm
  which runs framework
  which generates their own, non-standard UI widgets.

Oh, and don't get me started about all the languages

"easier, more portable, more future-proof, more extensible, and quicker to develop"? I mean, people aren't doing it this way simply out of incompetence or for the hell of it.

It's also something of a local minimum in the platform wars. We can't have truly cross-platform everything because the platform vendors wouldn't be able to take their cut. The only reason the web survives as a cross-platform platform is it's where they've fought each other to a standstill.

Free time to do something else but coding.

Or you get your own team and build the equivalent of a Subaru Rally car by investing a similar budget