You can just ask for yourself, this is HN not Reddit. You get used to the cold after a few uses, but there are luxury models that allow temperature control.

Where I live, the ubiquitous variant is attached to the faucet on your washbasin, so you get to set any temperature you want. (Most lavatories have the washbasin close enough to the throne that you only need to lean forward a bit; can get awkward in handicap toilets though.)

You would think having cold water applied to your underside would be uncomfortable, but it's not really. Sure, its a bit of a shock sometimes but you get used to it. And honestly, not having to wipe (and wipe and wipe) is 100% worth it.