It depends strongly on what you’re building. Interactivity is a property of the app and different types of apps have different interactivity requirements. For e

It depends strongly on what you’re building. Interactivity is a property of the app and different types of apps have different interactivity requirements. For example a page that is more or less a UI proxy for CRUD operations typically does not require too much client side state. On the otherhand, a flow chart editor (any document editor really) needs to function largely without round trips to the server. If the web app is intended for mobile, you would expect to see many more interactions with limited bandwidth or no internet connectivity, so you would need to account for that. This is much more about application architecture than preference (although you can certainly choose to only work on applications that match your preferences).