I also left during active addiction and years later I still have no contact with him, any mutual friends or his family so I do not know if what the heck he is doing .. and am ultimately better for it. With that being said, I don't have anything to offer you on "what recovery looks like" other than from what I have read on here and in self help books - recovery looks like recovery.
What I do know: I hit my rock bottom with the way things were going in what was left of our relationship ... regardless of where he was at. I just knew I didn't want that life anymore. I felt better when I didn't have to see a reminder of his things everywhere.
Probably hard to see the silver lining in the moment of the moving crew but I would just like to point out that at least he is getting his crap out for you ... and rather timely at that!