I looked at a lot of x-platform GUI toolkits for small applications and came to the conclusion that most of them really sucked. (In the case of Windows it's not certain at all that they've even been working on a viable platform for native Windows apps for the last 10 years)

The only complaint I have about Electron is that every crapplet made it with it has a 30MB installer no matter how small it is.

The only other x-platform toolkit I liked was JavaFX and sure you can "install the runtime once and then install a few small JAR files" but that runtime is bigger than the Electron runtime, Python with tk is ass ugly and has an inflexible event loop that limits you and has the runtime is almost as big.

Microsoft should just give up on whatever GUI toolkit it says you should use and make their own Electron-like framework based on Edge that is built into the OS so you don't need to install a huge runtime...