> with the same buttons and corner radius as other apps on the system

I just checked: No, the corner radius is different. I'm personally not very bothered by that, but it's just empirically true.

> Electron is a native wrapper for web content. The wrapper is still native.

In my view, the problem isn't that it's a wrapper, but rather that it's that it's a bad wrapper of a bad runtime (i.e. the incredibly bloated JS/web stack).