[LinkedIn] Add option to filter job postings by company culture

Hi Just a ventilation post. I’m (53M, 30+ yrs experience) working for a mid-size software development company (4200 employees, many locations around the globe, Gartner Magic Quadrant, etc) and not actively looking for new gigs, but like 2 weeks ago, a recruiter found me with an IT manager job and sent me the job description. I realised it’s not the manager, but the IT manager (a unicorn doing everything from L1 to architect tasks, including PM, 1 man with all the tasks and no team yet) for a very small (130-employee) startup. It was the first JD in a long time where I ticked all the requirements, and even more. The salary range was a bit below my current salary (tbh, my current company pays above-market rates to keep employees), but it was fully remote and challenging. So I said why not? First round (screening) with hr lady went fine, next (technical) went fine - as the requirements were equivalent to my day-to-day tasks on platforms I know very well -, next and last round with the cfo (I would directly report to him). Also very good; it was more likely a theoretical discussion about how to manage projects, etc. I'm usually a bit pessimistic about my interview performance and always underestimate it, but after the 3rd round, I would say there's an 85-90% chance of an offer. Yesterday, the recruiter called me to say that he got an email from the CFO saying he decided not to offer a contract, as - quote - “he’s not a good fit culturally in the company”. I was like wtf. It was not about the money, as we already agreed in the possible middle ground at the beginning, not my age, as they were aware of it as it’s literally the 2nd line of my CV, not a soft skill issue, as I passed the 1st round and not an issue with my technical knowledge, as I passed the 2nd round. So asked the recruiter about the details as it’s a one person job, no team to fit, no existing position to match, the diversity is not a new thing for me as i’m always working in multi-cultural/multi-locations companies so probably would be able to manage this, especially it’s only 3 location (india 85%, us 14%, ireland 1%). He was also surprised, as he had never heard that phrase for rejection. Does anyone have a wide idea what’s behind the decision? In what scenario would you use this sentence as the explanation of a rejection? I know, no need to worry. Even I was disappointed for an hour, and I bite the bullet and continued working at my current place. No fun, but pays well. Thanks, it was good to write it out.