You're right that's a hobby. But the hobby's definition of "proper maintenance" and what it "requires" is basically just people nerding out about things that don't matter the slightest in the real world.
To maintain a kitchen knife so that it cuts a tomato without squishing it, you don't need a book on knife science. Further, that nerdery is probably actively harmful, because instead of simple solutions, people are told they need an inspection microscope and a variety of jigs and other implements. So they buy an objectively bad electric sharpener and move on.
When you read these accounts, it always feels like no one had any agency or knowledge what's going on, that Hitler was basically a lone wolf who installed himself in power against the wishes of the nation, that had some outlandish ideas that no good German believed in, and that then he and a small band of his supporters somehow forced everyone to comply.
And to be clear, it was a totalitarian state, but it also wasn't North Korea and no Soviet Union. If nothing else, you could always leave. Many countries wouldn't take fleeing Jews, but as a dissenting German, you'd be welcomed with open hands almost everywhere.
So yes, of course there were people who hated the regime, and just decided they didn't want to or couldn't rock the boat. But a significant portion of the population approved of what was happening. Hitler was wildly popular. Millions of people enthusiastically bought into what he was selling. Germany perceived itself as a wounded lion after WWI. They felt they had a rightful claim on their "living space". And antisemitism in Europe needed no marketing. Tellingly, purges of Jews continued even after the war in the Soviet sphere of influence.
My point is, for every person who genuinely had no choice, there were ten who definitely had it, who more or less approved what was happening, and who would have been proud of it had Germany won the war.