Yeah, the RAM usage is quite high atm. The good news is that it's almost all the rendering layer (WGPU+Vello). So if we can make the renderer more efficient then it's likely we can bring that down. There is also some low hanging fruit in the DOM implementation (but I think that's only actually causing a few 10s of MB of usage).

I would also note that native toolkits (SwiftUI, etc) tend to also use at least ~100mb RAM these days. A lot of that is unavoidable if the app is actually visible, due to modern screen resolutions being so high.