While there are legitimate/measurable performance and resource issues to discuss regarding Electron, this kind of hyperbole just doesn't help.
I mean, look: the most complicated, stateful and involved UIs most of the people commenting in this thread are going to use (are going to ever use, likey) are web stack apps. I'll name some obvious ones, though there are other candidates. In order of increasing complexity:
1. Gmail
2. VSCode
3. www.amazon.com (this one is just shockingly big if you think about it)
If your client machine can handle those (and obviously all client machines can handle those), it's not going to sweat over a comparatively simple Electron app for talking to an LLM.
Basically: the war is over, folks. HTML won. And with the advent of AI and the sunsetting of complicated single-user apps, it's time to pack up the equipment and move on to the next fight.