Some of the problems here keep me from fully embracing lemmy, but its a hard question. Some communities that I participate have no intentions of moving from Reddit, some had to move from Reddit and some have found new homes, either here or elsewhere.
I’ve not been able to stop using Reddit because quite simply, some subs never migrated and they are major subs for me, such as /r/hockey. I’ve been using it less for sure and I’ve used Lemmy more, especially with Sync now available, but only time will tell.