You can add a snippet that contains the name of the current user (data source of the data view inside the snippet is a Microflow that returns the current user) to the layout of your pages in the top region of the layout.
A similar question was answered here. Try to search for your questions before posting them in the future to reduce duplicated questions and to find your answer without having to wait for it :D
Hope that helps.
thanks for your support. I got it.
For sure I search the forum first. But sometimes you don’t find although it’s there.