I thought I was the only ones
I too had a resection for my (bad case of) distal clavicle osteolysis. I am sure it is very person specific so there is not much to worry about if it takes longer/shorter than others.
I am exactly 7 weeks and 2 days after the surgery. With me, I had severly limited movement for around 2 weeks, especially with the 24/7 sling. After that I had much more movement and could take my arm out the sling for long periods. It affected me a lot as it was my predominant (right) shoulder. Although I could have gone without the sling completely about 4 weeks after, I still kept it on for certain periods. This was for 2 reasons: 1) it was a comfort zone and also kept people in the streets from knocking into me; and 2) the muscles in the shoulder/neck/trap were getting tired.
Now I am sling-free for around 2 weeks. Still a bit bruised (although this could also be from heavy massage and physio I get) but almost full ROM. Still catches a bit on the bone when reaching the extremeties eg. raising hand right over my head, either to the front or the side. Not too much pain other than a bit of discomfort on the bone itself, in particular then the clavicle and surrounding muscles take the weight/strain of a movement.
I wouldn't worry about it at all. Just keep at the physio and rehab work diligently.