Defederation and comment threads

I think there are good reasons to not let corporate interests join the space we built to escape them, but I guess every instance is free to (de)federate with whomever they want.

So let's say my instance (mander.xyz) defederates from Meta but another Lemmy instance that meander.xyz federates with (let's say "misguided.ml") does not. What happens when someone from Meta comments on a post from misguided.ml and others from misguided.ml comment on that comment? Will I see the comments on the meta comment, but not the original meta comment itself? Or will I not see the entire thread?