I live in Oregon and we never had mandated vaccine passports. Some private businesses would ask for proof of vaccination because they rightly thought that someone who'd been vaccinated was *less likely* to contract Covid...but even that pissed off people.
Can't speak to Oregon but huge numbers of states, cities and localities did have them, including in workplace. And btw I was in favor and still am bc dying ppl are expensive but mandates based on obviously false notion of immunity undermine public trust.