There are toxic instances and users, but the communities have done a good job of staying focused on staying on topic. So not really any people going off on some personal unrelated tangent screaming on their soap box.
Like the game based communities have focused on talking about games. I’ve usually avoided and filtered communities that tend to get rather argumentative like politics, and I don’t expect it to be any different in that department here from reddit.
My reddit experience was nice too because I stuck to my subscribed feeds and filtered lot of stuff out. Argumentative communities will always be that way regardless of where it exists and there is nothing wrong with that because it is on topic for why it exists . It’s an easy unsub and block if I want to avoid it.
I just hope some keyword filtering gets built in soon so browsing /c/all is easier to discover new communities I’m interested in without being cluttered by the ones I’m not interested in. Back on reddit my filtering list was useful, since it led to making /r/all a pleasant one where it was mostly filled with dnd or anime or star wars stuff as opposed to the default politics, Twitter/tiktok/Facebook reposts, and fight and gore clips that dominate it by default.