I’m currently running Fedora Linux with Firefox and YouTube opened up. The whole system uses ~4GB of memory. That’s totally fine and I couldn’t care less about what Microsoft is doing with their OS.

With that said, I don’t think we’ll see a lot of optimizations in commercial software. Maybe a few here and there, but a lot of developers nowadays don’t even know how to optimize their code. Especially people working in web development. Let’s just throw hundreds of npm packages into one project and bundle them up with webpack, here’s your 12MB JavaScript - take it or leave it.