Not sure about the interruption handling, maybe I need to do more research there. But totally agree with the last parts - currently, typical SPA implementation

Not sure about the interruption handling, maybe I need to do more research there. But totally agree with the last parts - currently, typical SPA implementations are often misguided and create more problems than they solve (if any) compared to a server-side approach. That does not mean that pure server-side is always enough to provide good UX, especially with interactive/offline apps.