PM's are generally the most irritating people to deal with in any organization. This is coming from someone who has been one - effective ones are very obviously effective, but the vast majority are glorified note takers and ticket pushers with very little ability to get anything done, whether due to lack of talent or lack of empowerment in the organization or both. I find arguing with them pointless.

It sounds like you've had a lot of bad PMs (or been one yourself).

Almost every PM I've had has been awesome. They understand the product and the customer far better than me, and help communicate exactly what I need to understand about both, so I can do my job (as a coder).

Also they have zero feedback on how long something should take. They are hyper-focused on what the business needs and when, but that doesn't make them pressure engineers to do anything faster unless it's a case of "hey this important thing just popped up; how quickly can we solve it?"

The ticket pushers also range from annoying or even threatening, to "helpful ticket pushers" who maybe don't understand everything, but they keep track of tickets, documents, links to other projects and so on and make sure nothing is forgotten.