It's made building cross-platform desktop applications that are just wrappers for existing web-apps down-right trivial (and no web-dev experience required there.)
And that case applies more often than you'd think. For example, the Spotify app, the Slack app†, the various Facebook Messenger "clients", etc.
It doesn't help that the Windows default (not sure about Macintosh) is to group icons in the task bar, so your separate Browser window for chat makes you two-click to switch between browsing and chat.
