Been in very similar situation with a CTO/tech lead. I walked away. Didn't have stock though so was easy to leave. Some people are just hard to work with. I had

Been in very similar situation with a CTO/tech lead. I walked away. Didn't have stock though so was easy to leave. Some people are just hard to work with. I had delivered well over 40% of all code changes in a team of 6 devs, but I felt he was just a bully and chaotic. I also told the owners why I left, got a muted response. From their position it's just one guy's opinion. That tech lead left a couple months later I saw on LinkedIn year later, he even moved countries (from Europe to Canada). Couldn't care much tbh. It really was a relief to be away from the guy at that time. Took a couple of months after leaving, took my time seeking a new opportunity. Moved, refurbished, walked a lot. Now back at it. I noticed I care much less, I was too attached to the product, too involved. Perhaps if I hadn't I would have dealt with it more constructively rather than avoiding/ignoring/getting frustrated. Now I am perhaps even more productive but I don't care much about the product; not caring saves stress and avoids getting into conflicts. Perhaps just taking a long time off (couple of months) would have solved the issue, but I don't expect people's character traits to change so in the end I feel I made the right choice.