My guess is that Slack for instance would never make a full blown native client for macos. If it wasn't electron, they'd probably have gone with Mono or another cross platform stack, and we'd see performance lag and memory bloat compared to a handcrafted native app.

I say that looking at macos' pretty big market share compared to what it was a decade or two ago.

And we see tons of users choosing VSCode or IntelliJ's offering above Textmate, Codea, or even BBEdit, so the market for handcrafted delightful editors is also pretty slim. And that trend was there since the Eclipse days, so nothing new either.

All in all, I really think the choice comes down to electron/cross compiled apps or no apps, in many many cases.