It's not for the storage or ram space. It's for being inefficient which always making me doubt about the company culture. If you want native capabilities so much, just build a proper software for the platform. If VLC and Calibre can do cross platform, you can do it too.

It's not native though. It's just a webapp in a second browser without any of the usual browser features, and reduced sandboxing.

It's all the negatives of a webapp and all the negatives of a native app with none of the positives.

A website packaged with the Web browser isn't a native app.

How is 400MB trivial? I run more than 2 programs at once, and this adds up. Imagine if every trivial process in your OS used 400MB on startup. And what pisses me off, is when I have to close resource heavy electron applications (signal, vs code) running in the background to free up RAM.