These same companies are writing custom SSD drivers and cutting edge Rust backends for the absolute best performance. I think it's pretty safe to say they picked Electron because it's the best tool for the job, not because the worlds devs are all too lazy.
> they picked Electron because it's the best tool for the job
Yes, but things they're counting as "best" include considerations other than performance and resource usage. Not that they're wrong in doing so -- everything's a tradeoff, after all, and engineering is mostly about selecting tradeoffs.
But as a user, Electron apps tend to be pretty bad, and so from my point of view, Electron is as well. I tend to avoid them as a result. But my point of view as a user is very narrow.