Yet.
There have been many right-wing exodus from reddit over the years. All of them have centered around a perceived “free speech” issue, and they have always flocked to the most promising alternatives (e.g. Voat). Obviously Lemmy with its origins was never seen as particularly appealing for that crowd. This time the issue just happened to touch the left-leaning part more.
Yeah, there’s that one shitty instance pretty much everyone defederated from a week or two ago.
It’s actually one of the oldest instances, over a year old. Because the worst far right trolls that got ip banned from reddit came here when they couldn’t make a new account on reddit.