To return to the drug use discussion, as someone who supervises defendants for the courts; I can say unequivocally that drug use has increased. This is not as a "direct" result of COVID per se, but a tertiary effect resulting from probation, parole, and court systems modify their meeting and drug testing procedures. With many court hearings being done virtually, it makes it much easier for usage to go unnoticed.
However, to a certain degree, those taking advantage of the current situation and using would have likely taken any opportunity to use. Drug use is a different pandemic upon itself. Lets not try to compare covid deaths to drug use increases/suicide deaths as if there are equivocal. The are not even close.