I guarantee you those youngsters haven’t forgotten.
No you can't. I have 3 DC, who were at various ages and stages of primary and early secondary school when Covid started. They had a shit time, at points, of course they did. And I hated it, I thought i was going to have a complete breakdown (really busy at work, zero support, single parent, so so lonely - I mean, like many).
So we did not enjoy it. Largely they HAVE forgotten about it and moved on. Sure, they think, 'oh remember when...?' but they'd want to be completely lacking in resilience not to have moved on largely at this stage.
Ditto their friends. Not one other parent I know is saying that their DC are still affected by the pandemic restrictions in late 2024!
The rest of your post is so hyperbolic and frankly a bit silly.
Yes, teen years are formative, and each of my DC missed out on some milestones during that period - my youngest (8 at the start of Covid) actually the most. He couldn't do meaningful work at home, would be someone who is prone to low mood anyway, and he was worryingly low during that time - and I couldn't help, as I wasn't much better, and I had to work so I would come down from my office mid morning each day, and find him lying under the dining table, immobile and sad, and often refusing to do any of the home schooling work.
I'm in Ireland, so in that period we had Confirmation and Communion celebrations that are typically big milestones in children's lives, chances for celebration etc and they were postponed and didn't happen in the same celebratory way.
Lots and lots of examples, as everyone has, of losses.
however, I'd be a pretty poor parent if I hadn't managed to instill some resilience in my children - since then they are back in school, fully involved in sports, have had plenty of great experiences since - they are fine. Most kids are fine. Some are not but most are. And even during lockdown, there were certain highly restricted periods but after a period kids could meet up (albeit outdoors), play sports (with restrictions) and even travel again (again, with limitations).
Barring the unfortunate few who had serious health complications from Covid, it's nonsensical to be saying that children were particularly adversely affected by a relatively short period of restrictions and inconvenience.