I am working with a client today, in 2021, that still has multiple developers making live changes to a dev server as part of their everyday development process.
Some of them make their changes locally in VS Code (or Notepad), FTP the changed files to their home directory, then sudo cp to replace the existing files. Others SSH into the server and directly edit files using vi.
Due to that workflow, none of those devs ever use a proper debugger (and have committed a lot of random console logging) and there are often conflicts when more than one person is working on a file. To address that, there is a Slack channel dedicated entirely to announcing what file you are working on.
Some of them make their changes locally in VS Code (or Notepad), FTP the changed files to their home directory, then sudo cp to replace the existing files. Others SSH into the server and directly edit files using vi.
Due to that workflow, none of those devs ever use a proper debugger (and have committed a lot of random console logging) and there are often conflicts when more than one person is working on a file. To address that, there is a Slack channel dedicated entirely to announcing what file you are working on.