Dont get me wrong. Im NOT saying she doesnt have an amazing voice. She has great vocal range, good technique and versatility, she can sing just about any genre
However in terms of distinctiveness, I think in that aspect Gaga doesnt really have that category pinned.
Most of the GP cannot instantly recognize a song is from Lady Gaga until they see the name and tbh if I wasnt a big fan i probably wouldnt either.
Even my parents as well as friends who dont listen