SPA

Teams frequently adopt SPA frameworks like Next.js, Nuxt, and Gatsby for projects that don't require them (e.g., login-only portals), burning client money and developer cycles on over-engineering solutions that would work fine as simple SPAs or traditional applications.

Search engines struggle to crawl and index SPAs because most content is dynamically generated by JavaScript rather than present in the initial HTML. This results in poor SEO performance, making SPAs difficult to discover.

Building and maintaining SPAs is significantly more complex than multi-page applications due to their client-side processing architecture. They are tricky to maintain, debug, monitor, and optimize, increasing overall development complexity.

SPAs have very heavy reliance on JavaScript for rendering content dynamically. If JavaScript is disabled on the user's browser, the application may not work at all or have severely limited functionality.