Renaming multiple files in vs-code is a very headache. For the small project, you can also do that. Now in the vscode code, it lots easier. To rename multiple, you need a vscode extension that helps to rename multiple files simultaneously.
Install Batch Rename extension Firstly step is to install batch rename extension in vscode using the following command.
ext install JannisX11.batch-rename-extension
Open VS Code Quick panel (Ctrl+P), paste it, and hit enter.
The use of batch rename extension is easy. First, select those which your rename, then help of right-click open file explorer in vscode and select the batch rename option.