- All the channels are named General for every Team I am part of and it shows several "General" channels in my pinned list. Unless someone mentions me, I simply miss those conversations in other channels.
- Search is pretty bad and it never works. Slack is pretty powerful and conversations in Slack are like KB.
- If a screenshot is shared, sometimes it takes forever to show when I click it.
- Every time I have to click 'New conversation' to post in a channel.
- I use a 34" monitor, when I expand Teams app - it hardly uses 50% of the real estate. Content is centered and lot of whitespace (or blackspace in dark mode :p)
I can go on and on.