Discord rewrote the PC application so that it would consume less memory - instead of Electron, they now use Rust, hinted Stanislav Vishnevsky, one of the founders of the service. Discord on PC is currently running on Electron. It's literally a browser within an app, which is why it eats up memory even when you're just chatting. After switching to Rust, performance should increase significantly and RAM costs should decrease. Nibkodili.