They are not really comparable. One is a individual sport and one is a direct competive sport like tennis or boxing.
They both use balls but that is about it.
I've played golf for close to 60 years. My best guess would be over 2 thousand rounds. I don't think I played more than 5 by myself.
With the exception of the relative few represented by stroke play tournaments, virtually every one of them were directly competing against one or more or their individuals.
I've played a lot more pool "competing" against myself, either playing the ghost or 14-1, than I ever did golf.
Just sayin'...