I want to try a Fox fork. What would you recommend for Fox fork? Am I looking for a fork that has a 15mm thru-Axle or 15mm QR? I'm assuming these two are different thing. Sorry, I am a noob and I have so many questions.

Would I be better off get a new front wheel if I chose to go 15mm thru-axle? I have never riden a bike with front thru-Axle, not sure what's so good about these thru-Axle wheels/fork. I've heard people saying it's a stiffer ride and better handling.

What's the difference between tapered and straight 1-1/8" steerer? How do you know my bike is not tapered?