I interpreted this comment as more of a jab at how inefficient are outlook and teams themselves as applications.
I don't know if it's the right interpretation to have, but I kind of agreed with it, considering huge issues I had with teams (curiously some of them are only there for linux users, weird when considering the fact that I only use teams' web page) - not saying I could do better though!
That wasn't my point. But tools like Teams kill more productivity than they enable, at least in my experience. If anything, I was more productive yesterday, because I got disturbed less.