That's right. EPEL is not an officially supported repo.
RedHat removed screen from the distro repos starting from RHEL8 and recommended tmux as the replacement. https://access.redhat.com/solutions/4136481
I think that's exactly what OP meant when they said they are missing Jails.
The closest thing I know is Firefox Focus, but I think it's mobile only.
That's right. EPEL is not an officially supported repo.
RedHat removed screen from the distro repos starting from RHEL8 and recommended tmux as the replacement. https://access.redhat.com/solutions/4136481
I think that's exactly what OP meant when they said they are missing Jails.
The closest thing I know is Firefox Focus, but I think it's mobile only.