This is No true Scotsman applied to “lockdowns”. Semantics aside, there is no question that certain personality types might even favor such an environment, while it’s also inarguably true that other personality types find it highly detrimental.
I doubt the answer can be found in anecdotes, nor will the true impact be fully felt or known for some time.
However claiming that wellbeing levels improved seems to me to be extremely misleading. The unemployment levels alone are overwhelming evidence that isn’t true. The secondary (non-COVID) public health impacts will ultimately be measured in millions of lives lost, due to mis-prioritizing COVID above all else.