Good question (o_~)
Or maybe the rumors of PS4,PS3,PS2,PS1 all in BC are real? and some of these 4000+ games they are testing in BC arn't PS4 games?
that would mean the "4000 ps4" games would still be a lie
"We said that the PS5 has been designed to play PS4 games. We're going through the process with the publishers and developers testing that rather exhaustive library of over 4,000 games. We're happy with the progress that's been made." - Jim Ryan, CEO of SIE.
Its not clear that he means 4000 PS4 games, from the way its formulated.
For those talking quality standards, it's not like bad games are a Switch exclusive commodity.
life of a black tiger.
the unknown city : horror begins Now
I think the opinion is there is vastly more of it on the Switch, than the PS4.
Basically take every game of that level on the PS4, and theres like 10 or 100 times that amount on the Switch.