Optional manual install: package with npx @vscode/vsce package and use "Install from VSIX…" in VS Code.
Usage
Set Folder Backup To Location › Backup Target Folder in VS Code settings (optional). Use a plain absolute path without wrapping it in quotes (e.g. /Users/you/Cloud Drive/backups).
Right-click on a folder in the Explorer.
Select "Backup folder to location".
The extension copies the folder into the configured destination (or asks you to choose one) with a timestamp appended.
Settings
Folder Backup To Location › Backup Target Folder: Optional default destination for backups. Use a plain absolute path without quotes.
Folder Backup To Location › Exclude Node Modules: When enabled, skips every node_modules directory during the copy.