No, with FPS specifically the term "Doom clone" was commonly used by the gaming press and most players until first person shooter was established as a genre term in the mid-90s when most FPS developed beyond Doom's restrictions. But any early 90s FPS released after Doom was called Doom clone.
Diablo-likes were called ARPGs at the time, but a lot of game magazines did call them out as Diablo clones, as did a lot of players, because they were obviously clones.
Diablo-likes were called ARPGs at the time, but a lot of game magazines did call them out as Diablo clones, as did a lot of players, because they were obviously clones.