A lot of people express concerns about Electrons resource usage. I wonder if people are aware of projects like zserge/webview [1]? It provides a cross platform API on top of the built in platform browsers and thus is very lightweight.
Of course, it means you have to deal with cross-browser issues, but I guess webdevelopers are used to this anyway. I'm also aware that these projects don't provide all the APIs that Electron provides, but many apps that are really just a wrapper around a webapp this is totally fine IMO.