None of them will come back as strong. The Millennial age of innocence is over due to the damage to their psyche. Even after COVID is long gone, their memory imprints, like Pavlov's dog, will haunt them for a decade.
We're fucked, dude. Even after the virus is gone, people will be walking around in masks. They will no longer shake hands. New memes will pop up about how to avoid social contact in the "post-Virus" era. Social distancing will be the new normal when it is not necessary, because they were prepped for this for years by being told that even though they were delicate, they were still number 1 and deserved a medal. For being a loser.
And wait until the anti-vaxxers come back onto the scene. Holy cow, that is going to be a real shit-show.
At least in the 1980s, people didn't have abject fear. They were used to it from the Cold War. They had guts. These days? All Snowflakes have had is coddling and told that they were not losers. But this virus has shattered that dream, and they are going to take it WAYYYY past the level of fear that would be considered normal. We're doomed.