I cannot love Electron. It's almost always an inappropriate choice for a desktop application, yet I see more and more of what should be power-user desktop applications moving towards using it, and it is horrible.

My largest gripe with it, besides the others that are discussed ad nauseum already, is that it is impossible, seemingly, for Electron apps to spawn multiple windows without creating entire new instances. I have several Electron-based chat applications that are a trainwreck to use, compared to their predecessors, because there is no effective way to handle more than one chat at a time; they can't just pop out a small dedicated window for a chat conversation, they have to live inside their one window, and this results in a terrible tabbed UI where one is constantly flipping back and forth between conversation threads. Or the bevy of Electron text editors that you cannot tear a file tab off and put on another screen.