gh extension to list all your actionable PRs.
gh extension install ian-bartholomew/gh-prs
This extension also requires jq
gh prs approved - list all of the PRs of yours that have been approved but
not yet merged or closed
gh prs stale - list all of the PRs of yours that have not been approved yet
but are still open.
gh prs requested - list all of the PRs that you have been asked to review