Electron.
While I’m singing the praises of Electron apps, I should also praise the memory efficiency of Catalyst apps, especially Apple’s own. 1.5 GB for a single-window app.
@gruber I don’t know if it’s Electron app or not but Apple Maps Data is listed as taking up 17 gigs of data even though I’ve deleted the app. By any chance do you know how to get rid of this 17 gigs or why it’s persisting even after the app was fully deleted rather than being offloaded?