In large scale, front-end app which I have worked, one of the requirements that must be present in the project was Server-Side Rendering. The core team has decided to go with NextJS, at that moment was the NextJS 6.
Many things started to goes wrong and we faced troubles with Dynamic Routes, state merge, and management.
Have you ever used NextJS to accomplish this requirement or any other lib/framework?
Last, did you have in troubles with SSR rendering not only in React apps but in other apps?