There are name difference of Percona software family.
such as
Percona-Server-8.0.27-18-Linux.x86_64.glibc2.17-xxxxx.tar.gz
Percona-XtraDB-Cluster_8.0.30-22.1_Linux.x86_64.glibc2.17-xxxx.tar.gz
There are all start with upper case.
but, there are also:
percona-xtrabackup-8.0.30-23-Linux-x86_64.glibc2.17-xxx.tar.gz
percona-toolkit-xxxx_x86_64.tar.gz
why these are started with lower case, instead upper case?
