How to show user header only on activity page

You need to add the following snippet into functions.php of your child theme:

function olympus_show_header_on_activity() {	return function_exists( 'bp_is_activity_component' ) && false === bp_is_activity_component() ? false : true;}add_filter('youzify_display_profile_header', 'olympus_show_header_on_activity');