well its definitely possible to gain LBM and lose fat % at the same time
however gaining real dry MUSCLE tissue and lose actual bodyfat WEIGHT is complicated and ineffective imo
the pure NUMBERS youre aiming for are attainable, i mean look at my log, you can gain LBM (water) and lose %bodyfat (but not actual fat weight mass) at the same time
ill update my log soon with a post about this exact thing, basically im eating the same calories as throughout january right now but staying the same weight after initially gaining these ~20 lbs. was hoping to continue going up 1-2lbs per month further but basically my weight hasnt budged, it actually decreased 2-3 lbs over the last ~2 weeks, whereas the first 3 weeks i was putting on almost a pound a day (which sounds like a recomp but is actually just putting on water weight and increasing LBM through that)
"recomping" only works well going from natty on a heavy cycle or coming out of a hard cut imo. even then its just an inferior concept to bulking/cutting.
i definitely think its much more effective to stay in a general caloric surplus to gain muscle.
obviously the body doesnt work on a day by day basis, but switches between anabolism and catabolism all the time, so it might be possible to gain muscle and lose fat at the same time, BUT this requires perfect nutrition timing (youll have to use the most catabolic and most anabolic "windows" (fuck i hate that term) to your advantage (=fasted morning cardio with GH, perfect pre/intra/post nutrition with slin etc))
thats my opinion on that.