Why Percona-Server-server-57 is not available in the repository?

I wanna install Percona server on my new CentOS 8 VM, I followed instructions on this page, added yum repo and tried to install the server using this command:

yum install Percona-Server-server-57

But yum is unable to find this package:Last metadata expiration check: 0:02:19 ago on Fri 08 May 2020 06:13:10 AM UTC.
No match for argument: Percona-Server-server-57
Error: Unable to find a match: Percona-Server-server-57
When I tried to see list of available packages, I can find Percona-Server-MongoDB-36, but there is no package named Percona-Server-server-57. These packages are also available, but I don’t think they are what do I need:Percona-Server-server-57-debuginfo
Where can I find Percona Server 5.7?

Hello @roushenas
You need to use

sudo dnf module disable mysql

This will disable dnfa packages and Percona packages will be visible.Details can be found in the instructions