Hi there
Iv had a similar injury that healed reasonably well but a year or so later I fell off th bike awkwardly and damaged some the muscle and tendons. This is as a far worse injury than the break. It started to ache a lot and I couldn’t pull back on the bars to lift the wheel.
I ended up with steroid injection into the joint and a fair bit of physio.
And regular yoga. This for me is the difference between these old injuries continuing to trouble me and keeping enough strength and mobility to keep the joint functioning properly.
Iv never tried to pad against another shoulder injury but I think strength and stretching are essential to aid recovery.
Good luck with yours.