Here’s a super quick one-liner to copy the current branch’s PR URL to your clipboard (for posting into Slack, tickets, etc.)
$ gh pr view --json url --jq .url | <pbcopy | xclip -sel c>
Remember to replace the copy command with your platform’s specific command.
This would also make a good shell alias.
Also, also, I might try setting up Clipboard for multi-platform goodness.