It's coming, at least for Edge on Windows. If you add appropriate meta tags, your app will even automatically appear in the windows store.
The web platform is a really great example of backwards compatibility - it has to, because people wouldn't tolerate breaking changes to websites. Browsers (and Electron) have made a lot of progress in the last years, but now I think this platform is very capable and you can get a lot done without waiting for a new feature. This makes something like Electron a good candidate to ship with the OS. Remove the burden of updates from the individual vendors, and use a lot less disk space and memory because there is only one runtime.
I don't see installable Electron any time soon, but interestingly Edge might fulfill that role on Windows (if it is compatible and PWAs are powerful enough to replace most electron apps).
That's the main reason, I think: the PWA is getting there, but only just now. Discovery (mostly on mobile) and integration (on desktop) is still relatively lacking. Once those are fixed, I'm guessing it will slowly be getting more uptake.
The web platform is a really great example of backwards compatibility - it has to, because people wouldn't tolerate breaking changes to websites. Browsers (and Electron) have made a lot of progress in the last years, but now I think this platform is very capable and you can get a lot done without waiting for a new feature. This makes something like Electron a good candidate to ship with the OS. Remove the burden of updates from the individual vendors, and use a lot less disk space and memory because there is only one runtime.
I don't see installable Electron any time soon, but interestingly Edge might fulfill that role on Windows (if it is compatible and PWAs are powerful enough to replace most electron apps).