Hi Douglas Muir,
Thank you for reaching out to us on Microsoft Q&A forum.
After making a change to your flow and saving it in Power Automate, the correct action to take is to "Test the flow".
There is no need to publish the updated flow, as Power Automate automatically saves and updates the flow when you save it. Testing ensures that the changes you made work as intended and allows you to identify and resolve any issues.
So, the correct answer to the question "After you make a change to your flow and save it, what should you do?" is:
"Test the flow".
If you are still facing any issue, please let us know in the comments. We are glad to help you.
If the information is helpful, please Accept Answer so that it would be helpful to community members.
Thank you.