Eh, Catalyst apps are as good or bad as the developer wants them to be. Voice Memos and "Find My" on the Mac are two fantastic Catalyst apps, and certainly better than Electron.
Anyways Catalyst won't even be relevant in the long term, once iPhone apps are written in SwiftUI
I often close the Twitter app and Apple's news and stock apps on my Mac mini because the performance is terrible. Hoping they've spent time tuning this more.