Why do you think they will be more (as opposed to less) efficent? Also, particular stacks attract a particular type of developer, and some are better than other

Why do you think they will be more (as opposed to less) efficent? Also, particular stacks attract a particular type of developer, and some are better than others. In particular, a lot of the ones that are good have been switching to Linux for the past decade and a half, and once you do that, going back to Windows is such a non-starter. It also doesn't help that Windows dev work typically pays substantially less. Stacks also have the varying number of "batteries" included, and on Linux, the Microsoft stack comes with very few "batteries".