Is lsof part of default RHEL installation?

I am trying to find out if lsof is part of a typical RHEL installation. I see lsof mentioned in a RHEL page titled Common administrative commands in Red Hat Enterprise Linux 5, 6, 7, and 8 but I do not know enough about Linux administration to know whether this means it will always be there or that it may need to be installed. I am trying to find this out so I can decide if I need to advise uses to install it, or if they (and my script) can assume it will be there. On a related note, how do I find out everything that a distro would have?