Depends exactly which sektor- some are literally the same chassis, some have steel steerers etc but with just a couple of exceptions they’re interchangable.
The RL damper is pretty oldschool now, you can swap in upgrades from the Rev but that stops being cost effective pretty fast unless you buy a dead fork for the parts. If you want a high end damper it doesn’t make any sense to buy a Sektor imo but if you have one already it can make sense.
Not necessarily recommending either- I need a new 150mm fork and it’ll be a Pike or a 36 or a Lyrik most likely. But I had 32mm Revs for years and they were ace, and I had a damper-upgraded coil sektor that was even better (but heavier than a Pike!)