Steps to reproduce:

1. Install Centos 8 Mininal Server
2. Install the Zabbix Repo
3. Install "dnf -y install zabbix-server-mysql zabbix-web-mysql zabbix-apache-conf zabbix-agent" results in the following error:
4. Error:
   Problem: cannot install the best candidate for the job

• nothing provides libssh2.so.1()(64bit) needed by zabbix-server-mysql-4.4.4-1.el8.x86_64
  (try to add '-skip-broken' to skip uninstallable packages or '-nobest' to use not only best candidate packages)
  [root@localhost ~]#

libssh2.so.1 is not supported or comes with centos 8

See screenshot