Currently we only support the Progressive Web App (PWA) template option with the Blazor WebAssembly template. This is primarily because offline scenarios don't make sense with Blazor Server. That said, it's still valid to have an installable PWA that doesn't support offline execution. Could we make our PWA support more general?

With the current Blazor Web App template it's not clear to me if it would ever make sense to enable offline support. The one case this might make sense is if we end up with some option or combination of options that make the entire app interactive using the WebAssembly or Auto render modes, but this isn't the currently plan.