To add another angle: in the past I've experienced issues where I'd always butt heads with a co-worker if we used a messenger, but would be fine when we talked over a call. I'm sure a higher reading comprehension from a certain someone could maybe have helped with that, but I suspect much of it just comes down to the fact that a lot of nuance/tone is lost when thoughts are put into writing, which makes it easier to offend people.

At work, arguing with people is the last thing I want to deal with, so calls are sometimes the simplest way to cut through the bullshit.