I have replied about this before I think, but I do not recall the place where I did this.
There were categories of Jews. One type of "Jew" that was spared, of which there were many, were jews who were not racially jewish, but converts to Freemasonry/Kabbalah, and all the related garbage, who were nevertheless of Germanic stock. Albeit rare, this category actually existed back then, as it exists today. Upon racial verification up to 300 years, if one was found to be a Gentile or a recent convert, they were left alone and they were spared.
Most of it however is just lies and exaggerations. Hitler just gave selective mercy to some jews, but they didn't accept them or anything. They just did not punish them as severely. They still remained limited in every regard, and they would be driven out when the case of their land (a world problem undecided still back then) would be resolved.
Hitler didn't attack them brutally and in a savage way as they lied to that he did after the war. The case with this treatment was to build global trust between the newfound state of Nazi Germany with other Nations of the time, as doing deplorable acts would make them hated and nobody would want any peace, negotiations, trade agreements, and so forth.
Jews in military positions were in particular a difficult topic to resolve, as they couldn't just pull them out of the military, and they had to treat them in a reasonable way as to avoid potential military coup and worse. These were also very few in number, and they were not in any serious intelligence or otherwise branch. None of these could get any offices in press, publications, nor any other important or affecting aspect of NS society. They just lived in a limbo.
Most of these categories all bent the knee to Hitler when he came in power, and the Nazis had to look into the longterm resolution, because this was not an easy matter. All part jews had most of their rights within the German State removed under Hitler, so they were effectively non-existent in the public assembly.