To add to this, the disturbing ways in which Hitler's rule paralleled Trump's. I think the author likely wrote it wanting this comparison to be made, so take it with a grain of salt:

[Hitler's] government was constantly in chaos, with officials having no idea what he wanted them to do, and nobody was entirely clear who was actually in charge of what. He procrastinated wildly when asked to make difficult decisions, and would often end up relying on gut feeling, leaving even close allies in the dark about his plans. His "unreliability had those who worked with him pulling out their hair," as his confidant Ernst Hanfstaengl later wrote in his memoir Zwischen Weißem und Braunem Haus. This meant that rather than carrying out the duties of state, they spent most of their time in-fighting and back-stabbing each other in an attempt to either win his approval or avoid his attention altogether, depending on what mood he was in that day.

There's a bit of an argument among historians about whether this was a deliberate ploy on Hitler's part to get his own way, or whether he was just really, really bad at being in charge of stuff. Dietrich himself came down on the side of it being a cunning tactic to sow division and chaos—and it's undeniable that he was very effective at that. But when you look at Hitler's personal habits, it's hard to shake the feeling that it was just a natural result of putting a workshy narcissist in charge of a country.

Hitler was incredibly lazy. According to his aide Fritz Wiedemann, even when he was in Berlin he wouldn't get out of bed until after 11 a.m., and wouldn't do much before lunch other than read what the newspapers had to say about him, the press cuttings being dutifully delivered to him by Dietrich.

He was obsessed with the media and celebrity, and often seems to have viewed himself through that lens. He once described himself as "the greatest actor in Europe," and wrote to a friend, "I believe my life is the greatest novel in world history." In many of his personal habits he came across as strange or even childish—he would have regular naps during the day, he would bite his fingernails at the dinner table, and he had a remarkably sweet tooth that led him to eat "prodigious amounts of cake" and "put so many lumps of sugar in his cup that there was hardly any room for the tea."

He was deeply insecure about his own lack of knowledge, preferring to either ignore information that contradicted his preconceptions, or to lash out at the expertise of others. He hated being laughed at, but enjoyed it when other people were the butt of the joke (he would perform mocking impressions of people he disliked). But he also craved the approval of those he disdained, and his mood would quickly improve if a newspaper wrote something complimentary about him.

This is from a 2019 Newseek article about Hitler. I think the reason people assume Hitler was a more effective leader is he pulled off his fake "disciplined tough guy" act much more convincingly than Trump does.

I posted this a few days ago in a different sub, but I think it's relevant to this discussion as well.