In case you missed the announcement: The Alteryx One Fall Release is here! Learn more about the new features and capabilities
here
ACT NOW: The Alteryx team will be retiring support for Community account recovery and Community email-change requests after December 31, 2025. Make sure to check your account preferences in my.alteryx.com to make sure you have filled out your security questions.
Learn more here
You can use the summarise tool to find the maximum value in a column and then append it back to your original data. I've attached an example workflow for you.