Are you asking about a specific episode or community of toxic behavior that originated there but has found its way here? If so, then my answer is no. Granted, I haven't visited that other site in such a long time, I likely wouldn't know if some specific instance of toxicity here was actually related to something over there. Also, I mostly avoid the communities here that are named similarly to subs over there which always seemed to be a magnet for drama or poor behavior. Mostly.

But if you're asking in a more general sense, then my answer is yes(-ish). I have experienced and seen a fair bit of toxic behavior and numerous toxic users here. In many cases, the behavior and mannerisms mimic the toxicity I was used to seeing on the other site. So, I presume it's something that originated there and then subsequently migrated here, but I obviously couldn't say with complete certainty and absolute proof.

Granted, that's not unexpected, and as other folks have already commented, toxic people and toxic behavior are pretty pervasive and ubiquitous on social media sites.

No.

Been seeing a lot of troll accounts, but over all nothing too extreme.

A bit of toxicity around specific instances/communities but not really the type from reddit. Also it's easy enough to block those instances. People in general have been great on Lemmy.

Nope. Unless these whining posts about toxicity count as toxic.

Outside of one troll that was banned for spamming comments sections with videos that I hope I never see again, I don't know if I've used Lemmy, whether it be my account on the main instance or this account, enough since the Reddit protests to really see anything "toxic". I have noticed that there have been more times where I've felt like I didn't belong here but I think I've always kind of felt like this and it's just more noticeable because I use Lemmy more since I stopped using Reddit.

Edit: You do know that down voting me just proves my point, right?

I wouldn't say that it migrated. I would say engagement increased on Lemmy and, with it, so did the toxic behavior. There are a lot more bitch fights on here now, but that comes with the territory of more posts. Reddit did seem to encourage this type of behavior, though. While there are some Lemmy instances that do seem to encourage toxicity (I have a couple in mind), the majority seem to be affected by it without actively encouraging it. Toxic behavior is, generally, human nature, because humans are toxic creatures. Most people, however, don't default to toxicity; they need to be encouraged into it.