What is the current trend in web application development according to Maximilian Schwarzmüller?

According to Maximilian Schwarzmüller, there's a significant trend over the last couple of years moving away from decoupled frontend applications (single page applications) with separate backends toward full stack applications. This approach integrates frontend and backend in one seamless project where server-side rendering pre-renders pages and fetches data directly on the server. Frameworks like Next.js and Remix for React are driving this trend by providing features that simplify building full stack applications. These frameworks wrap React and offer additional capabilities for server-side routing, data fetching, and rendering - essentially allowing developers to create integrated applications where frontend and backend work together cohesively.