Many people did dump on the PC as inferior, but it was a marvelous platform for tinkerers of every sort, and tinker they did. The result was a firehose of applications and hardware add-ons of every sort imaginable, including some unimaginably good ones like Doom.
Programmers were utterly amazed by Doom. Nobody had thought that was possible on the PC hardware.
The first PC Flight Simulator was another astonishing piece of engineering.