I know you didn't ask me, but I hope you don't mind if I toss in what I know.
Whether or not to drink tap water depends entirely on where you live and what's in the tap water, and actually the same is true of bottled water.
Some bottled water is only tap water from somewhere other than your tap. Still, it may be better than your tap water. Or, it may not be. The only way to know is to know what is in your own tap water, and equally what is in the bottled water and where it comes from. It's not hard to find out what's in your tap water if you want to go to the trouble of getting a water report from your water company or municipality. Finding out what's in the bottled water, though, requires an analysis and you'd have to pay for that, and it's different for every bottled water company.
Even if it is genuinely spring water in the bottle, it may or may not be better than your tap water, because the majority of the ground water in the world is contaminated with agricultural chemicals unless it comes from remote areas in the arctic. And, of course, the plastic bottles themselves leach microplastics into the water that is stored in them. So there's that.
So, bottom line is that if your tap water is safe to drink there's unlikely to be any advantage to drinking bottled water.
Unless, of course, it simply tastes better to you, as you are saying, Auriel, in which case the choice is clear. It may not actually BE better water, but taste is important.