I've tried many editors for various reasons, although I've never been forced to learn a new one for work. (The time I worked at a place where everyone used the same editor, it happened to be IntelliJ, with which I was already familiar.) The most difficult was when I switched to Vim fulltime to learn it. It took me about a year to really "grok" it and become productive. I've also done the same with Atom and VS Code, but those never felt as productive for me, so I gave up a month or two in. I keep coming back to IntelliJ, which is what I use now, because it fits so well with the way I work and I'm most productive with it.