I used to be a three pack a day smoker that could breeze through 5 packs on heavy drinking nights, that was Marlboros although I smoked Winstons on the beach and in windy areas, near the end I was drifting more and more to filterless cigarettes, I quit cold turkey when the mood hit me.
I seriously doubt that many menthol smokers are getting more nicotine than my system was.
My husband quit chewing tobacco a year and a half ago after over 50 years. He says he misses it very bad but he isn’t going to start again. Congratulations on quiting smoking. All four of our parents and all their siblings were heavy smokers and they all paid the price. I hope you are well and stay that way.