For context, I love and have worked a ton with Qt, and I much prefer Qt UIs as a user. But Electron has brought true cross-platform development to all platforms (Including Linux!). If it weren't for Electron, I wouldn't even have a bunch of the apps I use today. Hell, I wouldn't have a good IDE, and I don't think I'd be as good in Typescript had I not been a day-1 VS Code user.
I think the main thing preventing it from "feeling" good to most users is the most common complaint on HN about how each individual app is its own version of Chrome. This sucks; it's heavy, it's laggy, and users feel it even instinctively.
OSes and frameworks have tried to solve this a bazillion ways. Edge WebView, Android WebView, Qt WebView, QtWebkit, whatever the iexplore stuff was in XP, …. Electron might have the opportunity to actually solve this.
If it does, honestly, to hell with anything else. I'm sure over time the web world will gravitate towards a fairly common set of widgets that will, at one point or another be standardized. We'll reinvent UI frameworks under a different name, except this time they'll be running under the ultimate cross-platform framework.