Both excellent posts.
You may be interested in a book called Rites of Spring by a fellow named Modris Eksteins. Assigned to me by some liberal college professor years ago when I was studying WWI it details among other things the birth of “expressionism” in the postwar period and the rise of homosexuality and cross-dressing. Also on the reading list Franz Wedekind’s Frulingserwachen and a bunch of other crazy stuff. That class is most memorable to me because, as my homosexual TA whose advances I refused failed me on my final paper, it is the only class I have ever failed.
WWI defined the entire 20th century. Culturally, it changed everything. And the rise of the Bolsheviks became a poison that damaged the entire globe.