Oil pressure too. Used to be 10-15lbs but now it’s 40-50lbs. Tighter clearances have also allowed for the use of 5w20/30 as opposed to 10w30/40 which is less apt to sludge, especially as you say, with the newer formulations.
And before that, SAE 30/40 single viscosity with no detergents would sludge real quick.
“Used to be 10-15lbs”
Maybe at idle but not with rpms.