Apparently the Groyper far right has invoked what Hitler's Nazis did, particularly Heinrich Himmler.
from Google's DeepMind AI:
... some Nazis did invoke "Valhalla," although their interest in Norse mythology was mainly a tool to promote their ideology of a "pure" Germanic race. Heinrich Himmler, the head of the SS, was particularly obsessed with creating a neo-pagan Aryan past and prominently incorporated references to Valhalla and other Norse imagery into SS lore.
However, the invocation of Norse mythology within the Nazi leadership was selective and inconsistent:
Himmler's neo-paganism:
Himmler saw the SS as a modern-day order of knights fighting for the German race, and he pursued his fascination with Germanic mythology with zeal. He renovated Wewelsburg Castle as a ceremonial center for the SS, where he intended to create a quasi-religious space, including a hall for "Valhalla".
Hitler's ambivalence:
While Hitler occasionally used such rhetoric himselfreportedly invoking Valhalla in a eulogy for a friendhe privately viewed the mystical obsessions of some of his subordinates as foolishness. His public persona and rhetoric were often based on a more political, rather than overtly religious, form of German nationalism.
Propaganda tool:
The Nazis appropriated Norse and Viking imagery in their propaganda to mythologize their movement and justify their expansionist goals. They presented the SS as a reincarnation of Viking warriors, and their invasions were framed as a revival of Viking conquests. This was part of a larger effort to construct a fabricated national myth to legitimize their cruelty.
The Nazi co-opting and distortion of Norse concepts like Valhalla created a false link between Norse traditions and their ideology of racial purity.
In pre-Christian Norse mythology, Valhalla was the hall for warriors who died bravely in battle.
For the Nazis, it was twisted into a reward for "racially pure" warriors fighting for the Third Reich.