Partially yes, the people did good, but the government fucked up as usual. Increased ventilation in apartment blocks or office buildings requires work from companies or the government, who would also have to pay more so that really never happened, I guess the problem sorted itself out with Surface and object cleaning as it also implies less dust flying around in the air.

As for Avoiding crowding, public transit companies quickly switched to weekend schedule, despite no decrease in the amount of travelers. This made every bus and train about twice as crowded as usual. Herd immunity was also the goal in the beginning, even if the government denies is. So there where literally people traveling around the country with the sole purpose to infect others.