I was thinking more on the raiding and slavery aspects, TBH.
That aside… it’s unfortunate that a lot of the really good research on Vikings is unavailable in English, but briefly, there’s not much to indicate any huge cultural differences between a Norse, Saxon, Wend, Frank, or Frisian noble of this period, other than the God(s) they worshiped.
I could write a longer essay on this subject (and there are tons of thesises written), but IMO, a better way of looking at this period and the Norse place in it, is to consider that a long national naval tradition combined with the development of new ships provided the Norse Kings and Robber Barons with a significantly larger political and economic operating radius than they had in the past (and significantly larger than that of their neighbors).
Life and outlook for the Viking lord in Norway was not necessarily very different than his contemporary in Mercia or Aquitaine - the big difference was that his reach - both in trade and in war - became significantly longer with the development of “Viking ships”. If he had idle warriors, he could raid across the ocean against targets who couldn’t retaliate, unlike his land-bound contemporaries. An Anglo-saxon/Frankish King/Lord who was driven from his ancestral home had few options - he could seek refuge with a neighboring Lord if he had any he was on good terms with, or enter a convent. A Viking King/Lord facing such a fate had a much larger operating radius, as long as he could maintain the loyalty of his men. They could seek out new land to colonize (Iceland, Greenland), drive out existing inhabitants if they were strong enough (Orkneys, Hebrides), or simply supplant existing weaker lords a long distance from their home. This is how you get careers such as Erik Bloodaxe, Prince and King of Norway, later Jarl of Orkney, and finally two times King of Northumbria (whose sons would eventually return to reclaim the Norwegian throne) or the semi-mythical Rollo of Normandy, or Harald Klak (multiple times King of Denmark, who - during his exiles, served as a march-Lord in Frisia under Emperor Louis - long before Rollo would make a similar, but more dynastically-durable deal). The ease with which “Viking” lords could insert themselves into the existing power structures in England, Normandy, Frisland and Saxony is further evidence that there was a lot of similarity. A big difference was religion and the influence of the institutions of the Church in maintaining a centralized bureaucracy and enforcing the legitimacy of Kings. But Norse Lords were not monotheistic, and were quick to convert for political or monetary gain.
The popular idea - driven by anglo-centric history - that Vikings engaged in small-scale raiding driven by local lords, eventually building up to the “Great Heathen Army” is demonstrably false. Historical and archaeological records both confirm that there were powerful kingdoms already early in the Viking period. “Pre-Viking” kings supported the Saxon Wars/Rebellions against Charlemagne and Godfrid, one of the early Viking-age kings of Denmark, successfully waged war against the Holy Roman Empire and invaded Frisia with over 200 ships. Godfrid’s success in this respect was so great that he claimed overlordship over both Frisia and Saxony - much to Charlemagne’s annoyance (a major showdown was averted however, when Godfrid was assassinated). But as the conflict - which continued for another 30-40 years - between Franks and Danes show, Viking lords were active players in the politics of their age.