Must be dependent on your area/CoSA. I imagine some managers are under much higher stress levels than others depending on the org. For example, a manager in a good area of IT is probably going to be a whole lot more "chill" than one in the Bank who is under the microscope due to compliance or profitability concerns.
That doesn't give them the right or make it okay to take it out on their direct reports, to be clear, but "sh-t roll downhill" as the saying goes. I haven't personally seen a manager freak out, yell at their employees, insult them, or anything like that. Worst I've heard is a manager (different area, they just sat close to me) get super defensive and frustrated on a call.
I do think it's important to give first-line and even second-line managers/directors some grace in certain scenarios. Oftentimes they're just the messenger of decisions made way above their heads. For situations like RTO, most managers were just as frustrated as the rest of us but they are much more obliged to toe the line due to the nature of their role.
If the manager/director is micromanaging, setting unrealistic expectations, retaliating, or just generally being a je-k, that is just unacceptable. I've just seen in it happen too often where a manager has to communicate bad news to the team (like RTO, process changes, etc.) and people complain about the manager. It's often not their fault; senior leadership just forced them to be bearer of bad news rather than own it and communicate it themselves. EMG get to sit in their closed-door offices and pass the buck down to junior managers rather than "face the wrath" of their decisions themselves.