Regardless of the approach, caching is critical:
- Utilize Azure's global CDN to cache static assets and even HTML pages at the edge, closer to your users, for faster load times.
- For dynamic data fetching, consider client-side caching strategies to reduce redundant requests for the same data.
In conclusion, given the scale of your project, a hybrid approach utilizing ISR for the majority of your static content, supplemented with SSR, Azure Functions for API routes, and client-side data fetching for the most dynamic elements, would likely serve you best.
Azure Static Web Apps support deploying hybrid Next.js websites, which allow for dynamic, static, and incremental rendering of pages and components. This model supports all Next.js features, including dynamic routing, server components, and more. It offers the flexibility to dynamically render pages based on user requests or statically for optimal performance
https://learn.microsoft.com/en-us/azure/static-web-apps/nextjs
SSR and ISR for Next.js are now supported by Azure Static Web Apps, allowing for effective page rendering and dynamic content updates. SSR is appropriate for pages that need real-time data because it enables you to pre-render pages server-side for each request. However, ISR enables you to update static content after deployment without having to completely rebuild the website.