I just can’t find a decent email client that looks like it’s from the last 20 years. Geary and Evolution both appear to be pretty modern but something about using Gmail with a Yubikey just doesn’t work and neither of them will connect to my account. Both on Fedora and OpenSUSE. Thunderbird works but it’s so old fashioned and Betterbird doesn’t look much better. What’s everyone else using?
Teams because already use office / exchange and teams is integrated and “free”
We primarily use slack for communication, so I don’t have to use teams much, except for meetings
It’s all just tools and they work reasonably well if you use them as intended.
I don’t share your views on policies though, it’s important that people don’t do their own security assessments and follow what the ciso / security architect has intended. If you disagree, take it up with them.