My complaints are not even big ones.
It costs Microsoft ZERO dollars to remove the asinine keyboard shortcut control + shift + c to start a call. Who does that? Why is this right next to the ctrl + shift + v (for unformatted paste) What is the point of collecting all this metrics (kusto, whatever) if you don't ACT on it?
My complaint against Azure DevOps: Why is there no "date" field? From what I've heard there are internal people at Microsoft who suffer because of this nonsense. How hard is it to give a date only option? And no, 00:00:00 is not the same as date only.