Using Git worktrees is an excellent way to review or test a Pull Request (PR) in a completely separate directory without messing up your current working branch or stash.
Here is a systematic procedure to fetch a remote PR, check it out into a dedicated worktree, and keep it updated.
Using Git Worktree ensures you have everything under one roof. However, this is not a hard requirement. If you prefer just a regular repo directory, this is also possible.