Overall, in F1 24, there was a significant effort to improve car handling as can be seen by the addition of new setup items as well as larger/different ranges for existing items beyond what existed in F1 23.
This was a step in the right direction, but there needs to be significant additional development of the handling model, given there are more variables to deal with, and as a result a lot more permutations in terms of setups. Working through all those additional interactions has to be the top priority, as this is a driving game.