For those arguing the difference between lockdowns and the pandemic: it is vital to make that distinction. The government and the media are constantly gaslighting us with "because of covid" "because of the pandemic". Many of the terrible things described on this thread are squarely because of LOCKDOWNS, not covid. The OP's original question was about lockdown fallout, not pandemic fallout.
As for how terrible it might have been without lockdown: it's only because of the internet that lockdown on this scale was possible at all. A mere ten or twenty years previously, there might not even have been so much panic. The internet meant that blind fear and panic spread round the world in minutes.
I saw first hand the effects of lockdowns on children. It is unforgiveable that it went on as long as it did. Children were robbed of a large part of their formative years. "Only a year" to us is a quarter of a four-year-old's life. The fallout of this will be felt for decades.
Lockdowns went on for much longer than necessary. The government made promises they knew full well they could not keep, such as "just three more weeks" again and again, and "we can eliminate covid". Nope. If the government had admitted early on that lockdowns only delayed infection, not eliminated it, and that lockdowns were causing immense damage for extremely obvious reasons, I would now be respecting the government, and maybe even a short lockdown that it might have been. But because they dragged lockdowns on and on and on, until they could manipulate the figures enough to be "seen to have beaten the virus" (and yes, I very much believe the government manipulated figures A LOT, and is probably still doing so). The government was so desperate to save face, and could not bring themselves to say "actually, we can see that lockdowns are causing terrible damage, and the virus isn't nearly as dangerous as we said it was", they dragged out the misery for much longer than was needed. (If it was needed at all.) As far as I am concerned, Partygate is the proof that the government knew that things were nowhere near as bad as they were telling us: they had access to much more information than we did. If it really was a deadly threat, they would not have partied like that. Because they infantilised the population, and cried wolf on such a massive scale, I may never believe in any "government emergency" again. That is my lockdown fallout.
I have always doubted the integrity of government since I was a teenager; although I hadn't yet learned to distrust the media. My approval of government was very low indeed when Tony Blair declared his illegal war just because he wanted to. The last four years have been the final nail in any trust I ever had in government, and the media. I used to be an avid Radio 4 listener, but I haven't even switched it on since August 2020, with the constant talk of how bad "corrrrrrronavirus" allegedly was, and Boris Johnson casually saying "we have to squeeeeeeeeeeeeeeeeeeeeeeze the brakes on reopening". Now I don't believe anything the government says at all, or what the papers say; and if there's a sensational story, my immediate thought is always "what is the government trying to hide?".