That's how some people do it. There are also large hole blades designed for use with stone, like these:
https://www.amazon.com/DIATOOL-Diamond-Drilling-Granite-Concrete/dp/B07K2XFD9F?th=1
It all comes down to things like how much time you have, what tools you already have, how much you're willing to spend, how deep the holes have to go, etc.
That wasnt me. I dont draw. They make core bits to cut perfect holes for pvc pipe https://www.amazon.com/DIATOOL-Diamond-Drilling-Granite-Concrete/dp/B07K2XFD9F/ref=psdc_256268011_t4_B0052ZWUTC