I'd say that Yellow Dog Linux was the most influential of the PowerPC distros. I ran it for years on my first generation Mac Mini.
YUM, the package manager used until recently on RedHat/Fedora, was based on Yellow Dog's YUP:
[Y]ellow Dog [UP]dater -> [Y]ellow Dog [U]pdater, [M]odified
https://en.wikipedia.org/wiki/Yellow_Dog_Linux