Your puppy is fully potty trained and come to you most of the time when he's called. She is sweet and pays attention when you need her to. So you should give them more freedom, right? NO!
Your dog is very smart, at this stage they are building confidence and figuring out the rules of the house. They are learning what they can get away with and what is not allowed. At this stage you should spend lots of time with your dog reinforcing wanted behaviors. Working on impulse control and recall.
Your dog will soon become a teenager and all rules and lessons will fly out the window. During adolescence you will have to teach everything your have taught your dog over again. The more you work with your dog before that time period, the easier adolescence will be.
Just because your dog is easy now, doesn't mean they'll stay that way. Put in extra time to reinforce your foundation. You will be very happy you did as your dog transitions to adulthood.
Mental stimulation is the best way to tire out your dog