I like ours a lot better too. I'm just not sure If we can keep it AND do automatic switching at the same time. To even consider letting Qt handle everything, I'd want to make sure overrides via qt_styles.qss can still work. Losing that customization ability just isn't an option in my opinion.
But it's early days. I'm also very accustomed to the look of the current Windows dark mode. I'm not sure I could ever abandon supporting it in some form or another.