neowin[.]net/guides/microsoft-edge-eats-too-much-ram-here-is-how-to-limit-memory-consumption/
Edge, like any Chrome-based browser, can eat a Lot of RAM. That's not always a good thing, e.g., when you need that RAM for a game you're playing, and this How-To on Neowin shows you how to set limits on RAM use inside Edge.