Comment by cientifico

I wouldn't generalize it that much. There are few patterns where Turbo Streams, subscriptions, and permanent frames still make a lot of sense.

One classic case is user notifications - like the user icon in the corner. That's perfect as a permanent lazy frame, with a subscription watching for any user-related updates. This way you don't have to think about updating that widget across different pages, and you can centralize all user-related async events in

one controller.

Another pattern is real-time dashboards. You never know which part of the dashboard will change, and it's actually simpler on the backend: you just track what was updated and push that specific part. Clean and efficient.