For those who want fast and lightweight without falling all the way back to emacs/vim, I’m really digging Lite-XL.
Lua for customization, thin accelerated rendering layer in SDL2+freetype, zero nonsense. Binary packages are like 2MB. The code itself is clean and readable.
The plugin collection is still young and won’t have everything you’d find in the Electron-family of editors, but that’s also a plus when it comes to it staying lightweight and streamlined like some might want in these tools.