I know. He’s the greatest ever Bell.
Gabriel is certainly not the elite, Heisman trophy finalist type that OU has enjoyed throughout much of Stoops' and Rileys' tenure. He is a very good quarterback. If you want a talent comparison (not playing style, but relative talent), I'd say he's comparable to Landry Jones.
I do think Jackson Arnold has the potential to be a future Heisman winner for OU.