The "Profile" has always been in ACR, just never in the first tab before. https://www.damiensymonds.net/2012/02/camera-calibration-tab-in-acr.html
Dehaze, like the other three sliders in that section, must be used with extreme caution or not at all.
I don't know about Color Smoothness, sorry.
In short, nothing has changed. Keep editing, and FOR HEAVEN'S SAKE POST SOME PHOTOS FOR ME.