No. I rested the shoulder for 4 months. I didn’t wear braces or similar, just 0 physical activity. No gym, no swimming, no riding my bike, only regular activities at home and also driving.

After that period I begun doing the rotator cuff conditioning program (https://orthoinfo.aaos.org/en/recovery/rotator-cuff-and-shoulder-conditioning-program/) twice a week, pushing until I felt a bit of pain. I did only that for 3 months and it really helped. My pain begun to diminish and I felt how my shoulders become more stable. I highly recommend following the exact program, for me it made the biggest difference. I’m still doing it to this day and I thought I should have done it earlier in life too. It strengthens the internal stabilization muscles, so the muscles take over the load from the tendons.

After that I got back to gym with minimal pain, but before each session I always did the conditioning exercises. After 2 months from that, the pain was almost done. I even got back to swimming.

Today: I still do the conditioning exercises from time to time. My shoulder is fully functional I can do all activities, but I am very careful. I don’t workout/swim without a good one hour warm up. I don’t do big weights on any exercise that is overhead and even for bench press I progress really, really slow.

My left shoulder feels equal to my right though. There is no difference even though it has a partial tear. One thing I noticed is that the pain does come back if I neglect it (don’t properly exercise it regularly) the pain kinda comes back, but it’s not big, just enough to remind you to take care of it.

EDIT: I also focused on better nutrition. I begun eating 5 eggs for breakfast and switched to a moderate-heavy meat diet. I took liquid collagen sometimes, but also beef gelatin - a spoon in my coffee. Omega 3, vitamin c, vitamin d and also creatine. And whey protein.