No the pro controller doesn’t have hall effect sticks, but I’ve not experienced any drift. I did take it apart once to clean the insides however.
I had no end of problems with the joy cons, and have replaced those sticks with hall effect ones. Since doing that I’ve not had any problems, touch wood!
Admittedly I don’t use the D-pad all that much - does it not register inputs well? I guess it’s pretty important if you’re playing a fighting or retro game that require precise inputs. For the games I’ve played, it hasn’t been an issue.