Re: many of those 10k kills players have a very similar playstyle (aimbot style)
Some of them call it "recoil management" and it's true to a certain degree, i don't really know how some manage to do laser accurate R-99, that's why i use R-301 because it is somewhat balanced regarding recoil. Since i started playing i did notice my recoil management has gotten much better but that is to be expected when you get to know the weapons behaviour.
Anyway i still find it a bit strange aswell and there are some streamers that were caught aimbotting from what i heard, but i do not exclude the possibility that maybe i'm missing something about recoil management until i fully understand it and improve on it even more.
However, when i first started playing Apex Legends, the aim behaviour in this game was way off to what i was used to in other FPS games, i struggled alot in Apex but had absolutely no problems dominating in other multiplayer shooters. In Apex it felt like anyone was better than me. I still lose some gunfights, rocking a GTX 1080, 240Hz monitor and gigabit ethernet, Logitech G305 mouse, so it's not a hardware problem on my side. I am aware i still need to get better in Apex, and it annoys the hell out of me why my experience in other shooters doesn't fully translate here.