I think your analysis is fairly accurate. There are plenty of sites that are mostly static with some dynamic functionality injected in. JAMStack is great for th

I think your analysis is fairly accurate. There are plenty of sites that are mostly static with some dynamic functionality injected in. JAMStack is great for those use cases. For fully dynamic applications, JAMStack may not be the optimal approach but it does work. I don't use SSR for my dynamic applications and it's not bad. The user downloads a static React app, the app pings Auth0 to see if they're logged in, and then the app fetches data from my server. That takes 100-200ms but that's totally acceptable for my use case. One downside to SSR is that you do need the server capabilities to handle whatever load gets thrown at your site.