What is Copilot exactly?

A coworker of mine told me that he uses Microsoft Copilot frequently. In fact, he said "I don't know how I did my work without it." That came as a surprise to me. I can't stand Copilot. This is a very

Ibrahim Diallo Blog
This is weird to me because I don't think I talk to anyone regularly who even uses Cursor anymore, let alone Copilot. It's Claude and Codex now, and then people with more interesting/oddball TUI agents or async web agents.
I use Copilot pretty much exclusively because it's our "approved AI solution" at the office and they block access to Claude. Since I'm so used to Copilot at work, I just end up using it all the time.