May just be he is not now and never will be as good a hitter as those guys.
I'd be surprised if he did not have the high end of a league average hitter, which is what an OPS+ of 100 is. I don't expect him to be Wander Franco or Julio Rodriguez, but what that very small group shows is that it is very exceptional for a guy to be up at age 21, and often it is guys like Franco or Rodriguez who are up because there's nothing left to prove in the minors. All of this goes to my point that it looks like he's been rushed, at least offensively. TBH, Harris is the other guy on that list who looks rushed but panned out very well.
Again, there's other scouting reports, but Abrams has big gaps between his offensive tools now vs. future projections on FG's scouting report.
50/70 for his hit tool, 30/50 for game power, 45/55 for raw power. Speed is 80/80
That look like to me excellent contact and average power. Certainly not seeing that in terms of power yet. FWIW, those current ratings look almost spot on. His defense is surprisingly good.