As far as the solver is concerned, there should be no difference as it has been streamed. But I personally can’t see a reason to go back, as mamba is supposed to be a drop in replacement of conda. I default to use mamba and switch to conda only when necessary. There are some cases mamba can’t handle correctly, such as the case where you want to roll back to an earlier revision: https://github.com/mamba-org/mamba/issues/803