Sometimes you want the same field to be present in multiple phases for easy editing. So I would call this a multi-phase field.
For implementation I would suggest an additional field option, which is ‘other phase fields’ - where you can select fields from start from and other phases in the form designer.
Here is a workaround
And this may be a similar idea - i.e. similar user story/ need:
Hello!
Thank you for sharing this suggestion with us! This implementation is not on our roadmap for 2022, but I'll submit it to be analyzed by the product team!