Alternatives to offlineimap

Because offlineimap relies on Python 2.7 it is going to be deprecated by the end of the year. Have you replaced offlineimap with something else?

Btw, I have bad experience with mbsync. I lost the sync state two times which never happened with offlineimap. You need to resync from the start, if you lose the state. Do I just have bad luck or how is your experience with this replacement?

I'm already considering to replace neomutt with Claws Mail which I used earlier. You are my last hope.