The desktop belongs to Electron

Electron is the new Java+Swing.

It does work on every major desktop platform. It takes a while to load, uses more RAM, and is noticeably slower. Its apps have basic native features, like system tray/indicator support, but never support them very well and break metaphors used by truly native apps.

Electron is great for having an "offering" of a native app that's really just your web app with an installer. But the experience is never great.