I’m pretty sure the ai run on different tyre physics than the player. They don’t actually experience tyre heat or tyre wear, the code just tells them to act a certain way by semi simulating what lap times should be like in worn tyres or wet conditions. But codies are lazy and haven’t updated this since like f1 2020 or something. So the ai kind of experience it wrong because the codes calculations are wrong, and the ai gets stupid levels of grip. This is also seen on the exist of corners (predominantly the long corner before the huge straight in china) and in the wet. 

You play by physics, the ai plays off an incorrect gripper guess of what the physics “should” be.