Yes, and they're not alone even in the FOSS world (cough ...Gnome... cough).
My take on this is that someone decided that everything must either run on a cellphone or conform to its UI, therefore GUIs are slowly moving to the mobile touch screen model, which translates into leaving lots of unused space because of the bigger size of finger tips compared to mouse pointers that could trigger errors with smaller and more dense controls, and of course less controls because smaller screens with comparable resolution to much larger monitors would make them much harder to operate.
I can understand the reason, however all comes from the 1st mistake which is the attempt to unify everything to a mobile UI, probably to save on development time. It's unnecessary and it's wrong.