Likonima
Noob question about hydration in SSR
useAsyncData is used if you need the data on server side without re-fetching the data on client side and offers more fine grained control.
Reading up on it it seems not relevant which one to chose though for your case. in nuxt 2 async data was a method to handle any logic server side, and I kept the concept like this in my head.
It's definitely handy when you have built your own ofetch base and use that to make api calls. that can then be used in the useAsyncData. or NuxtContent can be fetched in there.
https://www.youtube.com/watch?v=njsGVmcWviY
https://nuxt.com/docs/getting-started/data-fetching
https://www.youtube.com/watch?v=0X-aOpSGabA
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