It does add up though.

    1. Ticket
    2. Feature branch
    3. Write unit test
    4. Periodically merge from main.
    5. Implement to get tests to pass
    6. Push changes
    7. Create PR
    8. Wait for PR feedback
    9. Address feedback and repeat
    10. Close and merge PR
    11. Automated CI deploy
    12.  Integration testing as needed
    13. Close ticket
    14. Include in next prod release

All of these are good things. But the overhead is significant. And there may be times when you want to do spikes that forgo some of these.