We were already shifting to different working patterns before COVID hit. Had it been 10 years earlier it would have been much more impactful but the concept of working from home wasn’t novel in a great many industries before COVID. And those that couldn’t function remotely continued operate largely like they did before the pandemic.
Also it’s worth noting that the vaccines were already years into development before COVID hit. We knew there was a risk of a Coronavirus outbreak (by virtue of the fact that we had dodged two Coronavirus pandemics a decade earlier). Granted the increased funding and urgency of COVID helped speed things along; but they weren’t exactly starting from scratch.
So it’s still not really clear how we would cope with a more dramatic or unknown situation.
What I did learn about the pandemic was normal folk will completely disregard their own safety just to stick a middle finger to the government. Which is not only concerning for the future survival of our species but also a direct contradiction to your point about civilisation banding together.