I have noticed that with some Electron apps in the past, but I had actually never noticed that with Discord. I thought it was native for the first 4 months I was using it because it was just done so well, no lag and such. The one thing that usually gives away electron apps is their lack of custom right-click handling, meaning a right-click will give you the generic context menu you would normally see in a browser. Discord seems to handle all right-clicks with their own context menus which is why I never caught onto it at first.
Make the window too small and the buttons overlap in the titlebar. I didn't even pick an extremely small size or anything, this was about half my screen width on my Macbook. But this is the kind of thing that making a proper native app forces you to think about, but that making an Electron app often doesn't.
I can pretty much tell within a minute of starting an Electron app because things just don't feel right no matter what the app is. Sibling mememachine is also pretty accurate - Discord is very oversized like many other Electron apps.
Not using native platform widgets is also incredibly noticable. Every time you're not using native platform buttons or menus it's so easy to tell, it feels weirdly slow, has excessive gaudy animations, the spacing is wrong, text size is wrong, etc. That's not to say that it can't be done right just that you're on an existing platform and that consistency is key.
While you do raise some valid points, and some that I disagree with, I've grown to appreciate such apps as of late. There was a time not long ago where half the shit on my computer was Java because that was the only practical way to make a decent cross-platform application without having to relearn different things for each platform. Yeah, the whole "apps built on web-technology" movement could use some refinement to reduce bloat and such, but when done correctly, it seems to work out pretty well for the most part.
