even religion that isn't high control like witnesses and scientology is considered a cult in the purist form of the word, and not all the things "cult" are necessarily harmful.
The difference comes when you say dangerous cult. which the witnesses in fact are. All religions are cults. So you cannot say cult or religion, the answer is always both. Now some cults are dangerous like the witnesses and some are eve far more dangerous than them. So as far as I know there is no cult scale showing where a religion falls on the cost of devotion.
Witnesses use undue influence, coercion, emotional manipulation, and the list goes on and on. They are not one of the laid back ones. I suggest you look up on you tube Steve Hassan on Joe Rogan's show. Steven Hassn still is religious and cannot deny that his form of liberal Judaism he participates in could not be called a "Cult". So religion always is a cult. We typically use the word though to describe fringe groups that control people, like the witnesses, but the word has a broad meaning.
jehovah's witnesses are a harmful cult