Stich-Sampras was 5-4 and last match in '95.
Krajick-Sampras was 6-4 and Pete won the last match in 2000. Not exactly "ownage" bud.
Bastl beat Pete in the last year of his career on a vastly different Wimbledon surface than what Pete grew up on.
Fed's a GOAT candidate for sure, but he's been aided by near-homogenous conditions and getting to play pigeons. The ability to upset was also vastly diminished because all the surfaces were slow which helped him dominate and domesticate his pigeons.
Imagine how many slams Pete would have won, and how thoroughly he would have dominated if all the surface played like grass, or just a bit slower/less slick. He'd still have the occasional upset against great players like Kracijek and Stich, sure, but his stats would be virtually identical to Feddy's.
Krajicek Pete was 6-2 at one stage before Krajicek's injury issues got worse and Pete took the last 2 matches.
Federer made his gen players look worse than they were unlike Pete who kept losing once in a while - Korda, Rafter, Kucera etc. (not just Krajice, Stich etc)
Pete's era was worse competition wise. 98 was probably the worst.
Agassi AWOL for like half of Pete's prime.
Fed would've been more consistent than Pete even in the 90s - he's just the better player and of course would have won 2-3 RGs in his place, not just 1.