I believe rather my own eyes over a long career than these surveys. It's certainly well below 10% if you don't count being just used for the lack of any alternative (aka sshing)
In my current role (contracting at a gov dept in a part that uses Rails and PostgreSQL) it's about 30% using vim or neovim.
In the rest of the department where it's .net and Microsoft all the way, the devs likely have never heard of vim.