This is similar to how I use worktrees. I have a worktree for the master/main branch; this is the current production branch. I have a worktree for test, which contains current branch deployed for testing. And I have worktree for doing new development.

If I'm doing new development and bug report comes in, I can just open the production project. I don't need to stop what I'm doing in my development branch at all. I don't have to worry about build artifacts or other details that come when you just switch branches in place. I also really dislike stashing.

I don't know why they aren't more popular.