I partially tore my right pec. I still have a quarter-sized gap in it after 4 years.
I did the Starr Rehab Protocol. Basically starts you with the bar and goes up from there. It was written for muscle belly tears but it’s a valid method.
In my opinion, if your Dr has cleared you, it’s time to work on it
Dis mane. If you’re doctor/surgeon/other medical professional has cleared you then it’s time to get back into things. If you don’t have it go get a follow up
Restore full range of motion then drop back to near nothing and gradually increase loading and workload. Probably start light Dumbbells just to be safe.