Clementine doesn't use Electron and consumes more of my memory and UI is ugly. Before we start talking about resources maybe we should compare other music players on the market.
There isn't really one inherently; a music player like foobar2000 only takes a few MB of memory even with many plugins. That doesn't mean Clementine and Winamp haven't found ways to waste resources that aren't loading a full Chromium instance (after all, Chromium is pretty efficient considering what it actually brings to the table.)
As a matter of fact(but not scientifically accurate), chromium-based browsers were consuming twice as much RAM on Win than on Linux whenever I checked.