Only era that was a little stagnant on the PC front was the beginning of the first Playstation (then pulled ahead mid to end), and the first few years into the Playstation 2 (then pulled ahead and did not look back since unified shader tech).
I am not sure, the Amiga still blew away most competition, I was not much of a Windows/PC gamer back then. But if we restrict it to DOS/Win3.1 sure, then you are probably right.