The BP xProfile WordPress User Sync plugin is no longer needed because the "First Name" and "Last Name" xProfile Fields that it provides have been added to BuddyPress 8.0.0. In addition to this, BuddyPress itself now handles syncing the data with the built-in WordPress User fields. For more information about this transition, please visit the BuddyPress Dev Update page.
Before you go ahead and deactivate and delete the BP xProfile WordPress User Sync plugin, there are few things that need to be checked to make sure your site continues to work the way it did before.