Default username of operating systems

OS	Default User
Ubuntu(20.04, 22.04)	ubuntu
Centos( 7, 8)	centos
Centos (9)	cloudlinux
AlmaLinux	almalinux
Debian	debian
Fedora ( 37, 38)	fedora
CloudLinux (7)	cloudlinux
Redhat(8.9, 9.4)	cloud-user

ssh -i access_key username@IP_add