I agree with the spirit of your comment, but I would also like to see some hard (not projected) numbers to take it beyond speculation.
Where I currently live in BC (Canada), there have been more overdose deaths than coronavirus deaths in 2020[0]. It might be the case that the overdoses have increased precisely because of lockdown. It might also not be the case. That remains to be investigated.
I think it's superficially easy to blame suicide, overdose, domestic violence etc on the lockdown, but that's hard to prove, because who's to say it's not a reaction to the overall situation of people dying of a brand new disease?
Personally, I really resent lockdown/movement restrictions and I think it's a garbage policy, right back from when I lived in China during the initial outbreak. However, I also have to admit that the countries that locked down seem to have successfully knocked this virus on the head, whereas those that didn't are still suffering the effects. Perhaps a lengthier lockdown pain at the beginning is better than this drawn-out shitshow of half-assed measures that other countries are going through? I dunno.
[0] https://www.cbc.ca/news/canada/british-columbia/overdose-dea...