WP_Application_Passwords::application_name_exists_for_user( int $user_id, string $name )

Source

File: wp-includes/class-wp-application-passwords.php

public static function application_name_exists_for_user( $user_id, $name ) {
		$passwords = static::get_user_application_passwords( $user_id );

		foreach ( $passwords as $password ) {
			if ( strtolower( $password['name'] ) === strtolower( $name ) ) {
				return true;
			}
		}

		return false;
	}