Why am I not able to add a user?

I’m running command grant all privileges on *.* to 'username'@localhost identified by 'strong password';, but I get the error:

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘identified by ‘strong password” at line 1.

I can add a user separately and then assign it the privileges on the database, but I’d like to add the user and assign privileges in a single command. MySQL version:

| version                  | 8.0.23-0ubuntu0.20.04.1       | | version_comment          | (Ubuntu)                      | | version_compile_machine  | x86_64                        | | version_compile_os       | Linux                         | | version_compile_zlib     | 1.2.11                        |