While some people do have longer problems from withdrawal, the majority of individuals who stop either SSRI or benzodiazepines, with appropriate tapering, do not have lingering effects.

https://medium.com/invisible-illness/is-antidepressant-withdrawal-a-big-problem-11a2803fd765

Many of those with prolonged withdrawal appear to have over-activation of their sympathetic nervous system, which is important to address with education and talking therapies (and very, very rarely) additional, short term medications.