If you are a desktop user such as me, its better to migrate to Fedora
Also, if you are getting error such as
Failed to download metadata for repo 'appstream'
CentOS team has moved all their packages from mirrorlist.centos.org to vault.centos.org
Running below commands should solve the problem
sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-* sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*