The issue, as you mentioned in your conclusion, is that Next.js should not be used for every type of app. Next.js targets the most common websites, not exotic web apps. Communication around any related topics, either by Vercel or the React core team, is a real issue. Next.js also doesn't really guide developers, creating misunderstandings and mistakes in how devs use it. However, it's worth noting that they are trying very hard to improve it. The state of Next.js 13 was awful, but it's much better nowadays. It's not just challenging for the average developer, but also for the framework creators too.