[blincoln]

Microsoft updated Office 365 earlier this year so that all the Office apps also load an Edge-based version of Electron, because letting their developers build UI elements as if they were web page content is more efficient for Microsoft.

The tradeoff is that every Office user has an additional 10+ processes that consume enormous amounts of RAM, but looks like someone in MS Marketing managed to turn that into lemonade, because it means that the "make your computer faster" ad is likely accurate (for Office users). Thanks to the magic of caches and shared libraries, running Edge probably does use fewer system resources than running Firefox or Chrome when Edge-Electron is already running.