Is this a first cycle? If so I'd say you'd be fine just coming off. How much winny? Your test dose is conservative (not a bad thing) so if the winny is also a relatively conservative dose (not taking 100/day I presume lol) then you should still be fine with just coming off.
Personally I wouldn’t ever not do a PCT if I came off but you’ll find varying opinions.
It isn’t going to reverse any oxidative damage but recovery to whatever your new baseline is will be faster and less painful with a PCT.
I typically have athletes use nolva or clomid at anywhere from 20 or 25mg per day, respectively, ranging from once daily to 3x per week for 6-8 weeks. Lower and longer is better IME and have gotten much better feedback from clients doing it that way.