You can get an Mk8 heated wheel without haptic buttons...
https://www.ebay.com/itm/144340825727
There are heated Mk7 wheels too, though consolidated info is hard to find... I probably have something bookmarked but need to look through them. That Vortex link, although old, does have good info. One
concern is that I never found a part number for an HVAC panel with heated wheel icon that was not climatronic. Not a problem if you have climatronic.
And that with that being said, there is
this old thread where someone with manual climate had a heated wheel, which suggests that such a panel does exist. But it seems that shortly after the Mk7 was introduced the heated wheel option was only available for cars with climatronic. In the Vortex thread it's also mentioned that enabling heated steering wheel in the long coding of a manual climate control panel enabled an option in the Car menu on infotainment to enable steering wheel heat. There was also some mention that on HVAC panels without the heated wheel icon that turning on driver seat heat also turned on heated steering wheel, which makes sense I guess.
Another wrinkle is that I don't remember being able to find a GTI/R (round airbag) heated steering wheel part number. Heated wheel was offered on Golf/Tiguan/Atlas(maybe) but they all have the "Superman" shaped airbag.