We really need to understand that there is a difference between "grip" and "handling".
People widely confuse the effect of adjustments on "grip" (i.e maximising weight on the tyres) and "handling" (the feel of the car, the "initial grip", the "responsiveness").
Most adjustments that increase grip ALSO make the car feel "sluggish". Most adjusments that make a car feel "responsive" ALSO reduce grip.
This is why we get many posts from accomplished drivers and builders which seem contradictory. Some drivers are tuning for "handling", others are tuning for "grip", that's why you get so many different approaches.
Fast drivers tend to be fast with anything. I'm not a particularly fast driver but my cars drive well. My cars drive well enough for fast drivers to borrow them and knock 0.5sec/lap off my times immediately!
Everyone will have their own approach to setup.
My approach starts with steering lock - I set the car up to turn full circle in the narrowest normal section of the track. I can then click rates up or down from that a little if the car understeers or gets bound up.
I'll usually work from a kit setting unless I feel something is way off (very mismatched wheel rates, weight distribution or geometry)
I'll look at mid-corner balance first, roll-centre and bars have the most discrete effect on that.
Then I'll look at rear traction, spring rates, damping and toe in have a big effect on that. Rarely use anti-squat.
Then I'll look at turn in, front springs and damping have a big effect on that.
There are a whole load of possible adjustments. And there is no substitute for testing them yourself, one adjustment at a time in consistent condition.
That being said, I probably have a slightly different driving style to many, I tend to roll the car through the corners rather point and shoot.
For me, suspension setup is one of the most interesting parts of the hobby.
Of course, it is all worthless if you haven't built the car right - thankfully the Photon is very easy to build right. My Scythe has a lot of little tweaks on it to make everything consistent.