Refactor code
There are two ways of refactoring code in ReSharper for Visual Studio Code: apply local code transformations (or context actions) and apply global refactorings, which will analyze the entire solution and make sure that all affected references are properly updated.
To list context actions available for the current caret position, press ⌥ ⏎. Press ↑ or ↓ to pick the desired action, and then press ⏎ to apply it.

In contrast to local transformations, global refactorings have dedicated shortcuts and menu entries. For example, to rename a symbol and all its usages in the current solution, set the caret at it and press ⌃ R or choose from the context menu (you can start either at the declaration or at any usage).

After typing a new name, you can either apply the rename or preview the changes:

If the new name of the symbol conflicts with an existing one, a conflict dialog will appear. This dialog will highlight the conflicts and provide options to either cancel the renaming or proceed with it, accepting the conflicting state.