Many years ago, when I was working on thousands of customer VMs across the globe, that all only had #vim (and #joe) installed, I changed my standard editor from #emacs to vim.
Took some time to get used, but after some days muscle memory vanished and I have grown to love vim ever since. Formatting long lines in markdown with visual selection and line-length set via editorconfig is really nice...
Now, as I no longer have to log in on so many other machines and mostly work with git on my work laptop, I have decided to challenge myself again. And I changed my default editor back to emacs (the nox variant, and currently without a server running).
It really takes getting used to it again and I keep looking into the emacswiki to find out, how I did all the stuff back then in emacs.
Probably later this year I will challenge myself again and try out the #zed editor. But until I want to get some stuff done first...