I was in a similar situation once. In the time between my offer letter and the day I started, the company fired every team lead and wanted to position me as a p

I was in a similar situation once. In the time between my offer letter and the day I started, the company fired every team lead and wanted to position me as a person that would help get the <location redacted> office in line with SF expectations. It was a culture nightmare. Beyond that, there was no engineering leadership at my location and the code was a mess. I could deal with the code, but not while dealing with the anxiety that the culture produced. I quit at three months. To his credit, the CTO was cool with it, noting that three months or less is basically the trial period, and if you back out of the job, no problem. I'd quit if you can. Pay attention to the red flags.