CentOS8 has been out for approximately a half year and in that time no Desktop interface has been completely ported.  And at this time the current release is 8.1, however, Centos folks seem bent on abandoning Centos 8 and replacing it with a rolling release called Centos Stream similar to Fedora and that seems to be where all the development effort is going these days.  So I am planning on deleting the Centos8 server and replacing it with a Centos Stream server in the near future.