When pressing save VS.code is not formatting Elixir files, even after installing the elixir-ls extension https://github.com/elixir-lsp/elixir-ls
VS.Code is trying to use Prettier as the default formatter and the option format with doesn't show other formatters.
We can define different formatters based in the language we are using, under settings.json in user space we can specify the configurations for Elixir.
On my file I used:
"[elixir]": {
"editor.defaultFormatter": "JakeBecker.elixir-ls"
},
My formatter starts with JakeBecker because I have the old plugin still installed in my system, this may or not have changed in the latest version.