I disagree. I have not seen many applications that take daemon + local browser approach. What are the examples?
Yes, each Electron app ships a copy of node and Chromium engine, but user gets icon on a desktop, ability to manage windows with whatever window manager and utilities, hotkeys, tray icons, dedicated menu etc.
I was thinking about the browser+daemon approach for an application that I maintain, and would also be very interested if someone has done it and has feedback to give.
You do have to be careful to avoid security issues. XSRF could be a problem if your server exposes sensitive APIs. But XSRF is not unique to this approach, and the techniques for defending against it are well known. And Electron has security issues of its own which are probably more serious.
Overall I recommend the daemon + browser approach. The "benefit" to Electron of only having to support one browser is rarely realized in practice because you almost always want a hosted version of your app as well, and that needs to support all browsers anyway. For example Slack and VSCode both have web versions.
