Oh, don't get me started... MS Teams has been doing this recently at work. Everyone is pinning messages, because when you hover over the Edit menu item for a message and go to click it, two more menu items load asynchronously below it, and switch the Edit button out for a Pin Message button right when you go to click it. And it's not even consistently like that, just sometimes. It's infuriating...
Personally what I hate the most is heart icon randomly suddenly appearing exactly where I wanted to click resulting in me adding hearth icons to completely nonsensical messages.
The teams share screen “menu” is stubbornly stack on a strategic real estate with no way to hide or minimize. Consequently, it usually hides the browser tab I’m on.
But the best part is throwing in some rdp. The teams share screen rect is carefully designed to cover the entire Remote Desktop title which is required to resize it.
I recently had to use the Outlook web client to send an email and the experience was nothing short of horrendous. The autocomplete feature kept eating keypresses unless I typed exactly what it was expecting, or accepted what it wanted me to say, and pressed tab. Of course, I can type faster than it can predict, so I'd be done with a word before the prediction would show up, and the damn thing would eat the space and the first two or three letters of the next work.
