You can't die from opioid withdrawal. It's unpleasant and many people need help. But it's not like alcohol dependence which can kill people if they stop suddenly.

SSRI/SNRIs can be problematic. The difference is that SSRIs tend not to have the other features of dependence:

Seeking the meds when you run low; preoccupation with the meds; continuing to take the meds even though you know they're doing harm.