Pretty much this right here +1
But to give an honest answer, in my opinion Khabib will be remembered more so then GSP, as a "GOAT" type. GSP will be remembered for his ko loss to Matt and then beating him in the rematch, he will be remembered for his questionable win vs Hendricks, and he will be remembered for having the best MMA Wrestling without having any high school, collegiate or international wrestling competitions on his resume.. until Khabib came along and had better MMA Wrestling, also with no high school, collegiate or international wrestling competitions on his resume. GSP had a much longer career within the UFC, though def not in overall career, but so have many others that are not in the GOAT talks, yet have the resume to back it up.. DC, DJ, being two that come to mind. But all those guys losses are brought up to discredit their GOAT status, so why is the same not said about GSP? DC actually defended the second title he won and beat many in that weight class, lost twice to a proven cheat and yet DC is quickly dismissed in the GOAT discussion. Khabib has arguably only lost two rounds in the UFC, five rounds in his entire career, has never been beaten in MMA in and out of the UFC, has changed the way many look at offensive grappling, has brought in a whole demographic of people that really didn't care for the sport of MMA like they do today, has proven to be many of the top fighters favorite fighter and one many try to emulate in the gym. His whole team even copies his look, as have others not on his team. As a GOAT imo, one needs to be dominant in the cage, respected outside of the cage and a factor in life to others outside and inside of the sport. He checks all the boxes while many others in the conversation, do not. Then those saying GSP had a longer career, need to check to see how many Pro fights both men had.
My list would be Khabib, DJ, DC, GSP, Fedor as my top 5 "GOATS" in modern MMA.