Nietzsche wasn’t a nihilist, though. Nor was Heidegger.
And Heidegger diving into the reactionary deep end is incompatible with Nietzsche, whose actual argument re: nihilism was that things like history, tradition, and Heidegger’s “authentic Volk” are without value.
You say “same kernel as Arch,” but Arch has five officially supported kernels, and you can choose any of them while you build your system. EndeavourOS allows you to switch kernels, but it’s assumed you will install the latest mainline kernel and you are only given LTS and Zen as additional options.
If you use LTS or Zen, or especially if you use Hardened or Real-Time, vanilla Arch is a different experience re:kernel.