Do you regret not plowing all of your money into DOGE in 2020? In the scheme of the things you could do to make money with hindsight, accepting a job offer barely ranks.
I had a badly timed offer of something (I don't really remember might just have been an interview, or contracting work, on the back of some OSS contribution) at Cloudflare pre-IPO, and I do occasionally regret/wonder what-if, because it's not just a random hypothetical, it was an actual opportunity I made a decision against. (Doesn't help that it's still a company on my interested-in list, much like the trap in investing of liking a stock but wishing you'd bought it lower when you first thought of it, and so continuing to not buy as it climbs (or not even investing necessarily but just being a consumer in an inflationary environment).)