Describe the feature or problem you’d like to solve

gh pr checkout is great, but afterwards I find it hard to recognize the checked out PR in my branch list.

Proposed solution

If I could pass -b my-preferred-branch-name it'd be easier to manage the resulting branches.

Alternatively, perhaps the branch could be prefixed, e.g. pr-1234-remote-branch-name.

Additional context

#746 (comment) suggests this as a workaround when the CLI can't determine a viable branch name itself.