I think that one of your best sources is the U.K. guidance. A few pages in, there is a box that highlights some of these behaviours. They range from isolating a person from friends and family, monitoring their time, etc., all the way to sexual assault, threats, etc., which are criminal offences. That might help you to understand what is captured by this proposed new coercive control offence.
On February 2nd, 2021. See this statement in context.