gitignore_global
You can configure a .gitignore_global file to ignore files or directories (e.g. .vscode/) in all your repositories. Write it as a standard .gitignore file and save it to some place, like ~/.gitignore_global . Then you can use the following configuration to set this as an excludes file.
git config --global core.excludesfile ~/.gitignore_global
Note that, the path given to git config should be a global path.