I‘d argue on that but only because the quality of tap water can vary so immensely… Almost nothing beats good tap water but I’ve had tap water that was so godawful I’d rather drink almost anything else if there’s no way to filter it
I'll give you that caveat. My brother lives in the rural town where we grew up in the butthole of Oklahoma, and his water is so hard that they justified spending thousands of dollars on a whole home water softening system. My in laws pump their own water and it's foul. I think they need to be filtering it. I think there's something in their groundwater.
As for the water in the urban and suburban parts of Oklahoma City, it's pretty hard to find truly bad tap water.
I’m from Germany and I know no one that pumps their own water so I never had to deal with outright rancid water but the water at my mum‘s place is hard enough you can hold it without glass (slight exaggeration). They don’t have a home softening system but just a small filter can…
If I’m really thirsty I manage to drink maybe one and a half glasses before the taste hits…