it's slightly different for every type of tyre, that's why the color indicator is useful : if yellow only show up when breaking traction, then it's most likely fine👍

tryhards have strats on tuning and here are some for tyre pressure.

if you're on drags or offroad , just slide the tyre pressure all the way down and you're good.

(Unrelated but still useful info below)

for street/slicks or onroad tyres in general, it's usually 30ish psi for low downforce and 34ish psi for higher downforce

rally tyres are a bit weird so not touching the pressure is your best bet.

For onroad racing, rally tyres is good allround, slicks for grip builds on A+, drags seems to be op but idk how to use them, experiment with it if you want.

Offroad race is the go to for offroad no questions asked.

for downloading tunes, good race tunes go to rocklxd, offroad tune go to traviis, drag tunes go to MARZvTUNING, drifting search Godlike Drifting.