Maybe that's because Electron isn't made to just display a single line of text?
Text Rendering, CSS Layouts, Accessibility, being good at cross-platform, Canvas/WebGL and a myriad of other APIs make Electron pretty powerful. I don't know exactly, but I think QT would be it's main competitor when it comes to those features.
But QT isn't always that easy to develop with.
For what is worth Electron could solve all the problem in the worlds. My point is that in order to display rich text, images and basic UI elements (what Notion and for instance Slack need) it requires an abysmal amount of memory with respect to a native implementation.
Your complaint is basically saying "Hey, I don't need this professional workstation just to run Notepad, what is going on in the world?!" while professional workstations are not for running just Notepad, they are for doing a lot more things than that.
Here you are complaining that a "hello world" uses a lot of memory. Yes, that's true, but the use case for Electron is not to display just "hello world", it's to build full, accessible applications in languages who are usually native on the web.
Text Rendering, CSS Layouts, Accessibility, being good at cross-platform, Canvas/WebGL and a myriad of other APIs make Electron pretty powerful. I don't know exactly, but I think QT would be it's main competitor when it comes to those features. But QT isn't always that easy to develop with.