I recall Worf being in “I am Klingon, hear me roar!” mode right from the get-go. This was greatly disappointing to me, 'cause there was plenty of opportunity to explore the “nature vs. nurture” debate with the character, and it all went to waste.
Oh? The ending of the Redemption 2-part episode disagrees with you.
Worf starts out a bit of a reluctant Federation citizen (Starfleet is probably the only viable option for him; where else does warfare take place in the Federation?), but in the end he forms of a synthesis of the two cultures. As does his son IIRC.
There is a lot of Klingon civilization we don’t see, but obviously great honor must go to those who design weapons and other tech associated with warfare - and so much science and tech (in real life too of course) is useful for warfare or was originally designed for warfare. You know, like the internet?
They are shown both in ST6 and other times in the various series to have an appreciation for art (music and drama in particular). Klingon cuisine, despite it’s appearance, is also canonically highly nutritious (and tasty!)
Wow, I never knew I was such a ST nerd!