Can confirm, my boss has his own paid Zoom while I’m using Teams to save research money. Another assistant professor I know pay for Slack as well.
I think Teams improved and Zoom regressed in the last 3-4 years to the point the garbage level is not that different nowadays. Most of the annoyance is related to finding your way in a different interface.
Avoiding Office 365 is so annoying due to everyone in academia using it that I’m using macOS instead of Linux at work just to interface with others better. I got used to it but I need Linux as soon as I’m home, I feel observed and vulnerable otherwise.
Not sure why you'd not just use discord if cost is that much a factor, it has better calling that slack and ironically given what slack is used for way better code embedding etc.
I took online classes in both Zoom and Teams. I prefer Zoom for that because I can hide most of the UI (and the other people) to focus on the teacher and their shared screen
I thought everyone on academia used LaTex, or at least in STEM?
Are people really making hundred-pages thesises in Word?
I suppose it is not that bad if you don't have a lot of charts/pictures/formulas, but still...