JEVS interview questions

I was reached out to to schedule an interview and ghosted twice by a hiring manager before they followed through with solidifying a time and date. The interview was relaxed and pleasant, but I was told they wanted to bring me on and I would hear back in the next week about next steps. I heard nothing for a month and a half, I assumed they were passing on me. They reached out eventually and offered me the job and asked me to start on a certain date so I gave my 2 week notice to my last employer, but I didn’t end up working my first shift until 2 weeks after the start date they had given. So it’s unorganized for sure.