A "quite desirable software company" is one that can attract people who are smart and socially competent, and can weed out employees who are toxic. Your current

A "quite desirable software company" is one that can attract people who are smart and socially competent, and can weed out employees who are toxic. Your current company clearly can't do that, and I'd question the basic premise that it's desirable. I've worked with some brilliant and horrible people in the past. It doesn't get better, and my general opinion is that life's too short spend tethered to such people. Get out and don't look back.