You sure you don't want to get lost into MS Teams? Where you lose chats all the time and can hardly paste codes and links without it all going wonky?
Joking aside, I am will you on the 100% remote + slack fondness. I'll also regularly mute all if I'm trying to do a deep work session for a couple of hours.
Teams doesn’t even implement scrolling backwards through message history correctly - it’s like some kind of janky game of precise mouse control to see if you can get it to stay still on the message you’re interested in.