If you’re talking about an app that exist solely as Electron, then you might be right. But the primary benefit of Electron is that you can distribute your already existing webapp as a downloadable app, which reduces the amount of maintenance significantly.
Also, when it comes to UI diversity and customization, nothing beats HTML+CSS.
And as you mentioned, there’s a looot of webdevs. Electron empowers those people to easily create applications. Which they did, they created many useful apps. An application that isn’t perfect resource usage-wise is often much better than no application at all.
Think of Minecraft. Java is arguably the worst language to use for a chunk-based 3D game. But it’s still better than no Minecraft at all.
Don’t use apostrophes wherever you see an “s” at the end of a word. If you’re unsure about whether or not to use an apostrophe, just don’t. Because statistically, there are far fewer cases where you need 'em than there are cases where you don’t. Plus if you missed the apostrophe where it should be, people will just assume you didn’t bother to type it or it was a typo. Whereas if you do type it where it shouldn’t be, it’s a clear case of “this person doesn’t know how apostrophes work”.