yes, most of the caching mechanisms are disabled inside dev mode

dived a bit deeper and the reason was that my application uses cookies and headers

is the data cache technically the same as static rendering ?

when you statically render stuff, then the page exists already in html/css/js. This data is not saved inside the data cache. It's saved inside the full route cache

so i can still revalidate the data cache with revalidatePath which will also update the statically rendered stuff ?

yes, it can still be revalidated. Take a look at this: (see attached)
https://nextjs.org/docs/app/building-your-application/caching

so even if a build the app and a specific route is static, a revalidation still updates it right ?

yes

thank you

its a bit hard to wrap my head around all this caching rendering thing

takes time i guess

yea, sometimes it can be a bit confusing. Thought asking questions and solving problems you will learn more and more. So no worries 🙂