Fedor fought 23 fights in his first 4 years fighting. He won the Pride HW belt and won his next 18 straight fights and beat the best HWs if his generation while they were in their prime. Beating Mirko, Nog and Arlovksi in their 20s is way more impressive than Stipe beating 40 year old DC, 39 year old Werdum, 37 year old Arlovski , 17 KO losses Reem and a green Ngannou who lost to Derrick Lewis in his very next fight. Let's not forget 30 year old Stipe got KOd by Stefan Struve.
Stipe's career cant make Fedors career a sandwich. Only UFC fanboys who dwell in basements think otherwise.