Honestly, the most laughable claims were always “Sampras didn’t care“, and I say this as a big Sampras fan back in his days.
“Sampras only won 64 titles, much less than the Big 3” - “Yeah, but Sampras only cared about BIG titles”
“But he only won 11 Masters” - “Screw the Masters, he only cared about SLAMS”
“He never won RG though” - “Come on, Sampras didn’t care about clay, everyone knows that. He was already preparing for Wimbledon.”
“Two Australian Opens isn’t that much for a GOAT candidate either” - “Australian Open wasn’t a real Slam back then. Sampras didn’t bother practicing too much for that at the start of a season.”
And all that about a player who, contrary to many of his peers, in his active times had the reputation for ONLY caring about tennis over the whole year. For his apologists today he only cared about two tournaments each year: Wimbledon and US Open.