In fact, as a manager in my current team I probably spend more time nudging people to fix technical debt they've forgotten about because they're excited to work on the next feature than vice versa. In other teams I've spent more time cautioning away from writing functionality that isn't needed right now to avoid overengineering the solution.
How you communicate that guidance and extra context has to depend on the team, what works for one won't necessarily work for another. What you found to be terrible another developer might love - as a developer who now has some management responsibilities I had to learn that some people actually want a lot more management than I would have ever wanted - my "micromanagement" is their "I am supported and know what's going on".
Anyway I'm not saying there aren't bad managers out there (or that I'm a good one), but it's a lot more nuanced than you imply, and what you might hate in a manager others might actively seek out.
> my "micromanagement" is their "I am supported and know what's going on".
What you’re really seeing here is people grasping at any life preserver they can grab in an incredibly poorly run organization. In a well run organization management is extremely hands off, because the machine runs smoothly and scales.
I recall one engineer in a team of 20 or so that, whenever he ran into a problem, he'd stop, fold his hands, and sit back in his chair. And wait until the manager noticed this, would come by, ask what the problem was, fix it for him, and he'd then proceed.
You could say this was all the manager's fault, but the rest of the team did not behave this way.
Another time, I recall one who needed micromanaging. Eventually it turned out he was on drugs.
Certainly there are better ways to communicate than looking to see if someone is sitting back in their chair. Either they are delivering or they are not. If not, a good manager will ask what the problem is, then fix it. Not delivering should be a temporary state, if it’s not, that employee may not be a good fit for the org.