Next.js can only be used with Expo for web, this doesn't provide Server-Side Rendering (SSR) for native apps.
I do not understand completely. Does that mean Next.js can be used with Expo for web Only, not for Mobile? or Next.js can only be used with Expo, not with React-Native bare workflow? And it does not provide SSR for native apps. Does that mean no SSR for Mobile or Both web and mobile app?
It means that Next.js can only be used with Expo Web. Not Android/iOS Expo apps. The second part of the sentence is basically just saying the same thing in a different way.
Yes.
No. SSR should work for Expo Web. As the documentation says under the Contributing section:
If you have any problems rendering a certain component with SSR then you can submit fixes to the expo/expo repo