At work, we have a manager with no prior managerial experience, at least none in the tech world which any of us would consider reasonable. He doesn't even have a manager title, but we're assigned to him as subordinates. He attempts to micromanage people, butts in to our personal lives in a way that's considered excessive and has even revoked another employee's disability accommodation, which the employee paid for himself, because the manager has "trust issues."
Long story short, he's an individual contributor with no prior managerial experience who wanted to become a manager and the company let him. We were performing well and enjoying our work, then he shows up and feels the need to engage in very petty, passive-aggressive micromanagement that considerably reduces our performance as he's constantly interrupting our work.
This has been going on for months. Many of us work flexible hours, but he revoked flexible hours from some people he didn't like. The disabled employee is taking the brunt of the problems after reporting to HR, but I've started updating my resume just in case.
How do you deal with this? I've only been at this job for 4 months, but it's starting to look really bad. What's more, I'm afraid of it affecting my resume if I leave. Same issue with another employee who has only been here a few months.