I think the opportunity cost for not moving to a different gig really hurt me, since AI/LLMs were just about to explode at the time I noticed the red flags. I chose to stay because I strongly believed in the mission of my last company (aka really wanted to make that perfect oven), and had some misguided sense of loyalty. I ended up staying a few years.

A wiser version of myself would have cut my losses after at most one year, or much sooner, especially after noticing the red flags. This is something I'm keeping in mind for my next gig.