This. Top tube to keep your buddy's levers from destroying it when you shuttle. Chainstay and seatstay for all the heel rubbers out there. Top of the seatstay bridge and or "loam shelf" as well as back of the seat tube to prevent flying rocks from doing damage. Most frames have some sort of shuttle guard now. If they don't, I'd suggest something thicker, like the clear lizard skins protector. 3M auto clear bra holds up for a while, but will eventually wear through.
I feel like these are all easy to protect, commonly damaged areas. Much else, like the inside of the stays, is purely wear and tear from riding a bike imo.

https://www.pinkbike.com/news/pinkbikes-editors-chose-their-ideal-geometry-numbers-vote-for-your-favorite.html

Also lists his ideal Geo from a year and a half ago, haha. He only really went up in travel, and switched to a mullet.

Considering his comment on the need for a stiffer stronger rear wheel, that didn't make sense to me either. Maybe needed a slightly stiffer wheel to make up for the compliance of the fork.

Main reason I'll stick to my Onyx. Plus everyone working there are super nice people, I'd much rather support them, especially with current situations.
I like the idea of not having that rubbery feel, but not enough to buy the box hub instead. I feel like it probably helps with pedal feedback also, I've never felt any super harsh yanks on the pedals with any of my onyx hubs.