Orthopedic surgeon has my leg locked straight for 3 weeks after acl surgery using hamstring with no physical therapy. is this concerning?

Every surgeon has-: -their own protocol they follow. Some brace & some don't brace. I always started PT right away with the brace off and add motion to the brace as your motion increases. I look at the brace to protect from injury while up & about, so if you misstep the brace will keep you from flexing beyond what you have obtained in PT