Of course, tc, and I think putting an in-prime Fangio or Clark into an RB7 would lead to no end of confusion and them being unable to beat Seb Vettel's time.
G.O.A.T.s are for fools in any sport. Even in individual sports it is foolish - in tennis it has been said that it is Roger Federer because he's won more majors than anyone else, but Rod Laver missed several years to go pro. In football, Diego Maradona never won a top-level continental club trophy (either the European Cup or the Libertadores). He probably couldn't tackle as well as Beckenbauer either! And the effect of the rose-tinted memory is such that even in an objective sport, the semi-recent is chosen.
Look at football's G.O.A.T.s and Argentine midfielder/strikers. Messi vs Maradona vs di Stefano. In Barcelona, they'll say Messi. In Madrid, they'll say di Stefano. In Naples, they'll say Maradona.
F1 is the same. The answer to G.O.A.T. in Brazil, France and Germany will be markedly different!