That's kind of the point: people online will say that's the 95 %ile level[0], and either they're taking the piss or they're self-selecting into a group that actually tries, so it's the 95 %ile of the 95%ile, or the 99.75 %ile. Meanwhile your average gymgoer that sometimes wanders into the free weight room thinks putting the big plates on the bar (i.e. 135) is a lot. There's obviously no way 1 in 20 dudes at the gym have a ~350 bench.
[0] https://strengthlevel.com/strength-standards/bench-press