Suggested

dirty air in the rain

There have been a lot of races in the rain recently and one thing that is bothering me is that dirty air in the rain is exactly the same as dirty air in the dry. it would be nice if the dirty air in the rain is reduced according to the water level to be more realistic.
ex: -10% between 0.1mm and 0.9mm, -35% between 1.0mm and 2.9mm, minus 60% between 3.0mm and 3.9mm and -75% between 4.0mm and 5.0mm
it would be cool because it would make it more realistic and see more disputes for positions.

I agree that cars should be able to overtake in the wet more easily, without DRS it's just whoever qualifies first in a non refuelling race wins.
Currently with wet tyre wear only being 1% per lap, with no refueling it's basically a zero stop race. Whoever qualifies in front, just boosts whenever the guy behind does and will always stay ahead. People can never pass just by using push levels. So make it easier to pass or increase tyre wear to 2-3% to increase the management and strategy.

even if they increase the wear of the tires a little it wouldn't change much unless they increase the wear to the point where you need to make 4 or 5 stops in the rain which would make the game less realistic.

Yes but you can still cook your tyres in the rain making you loose a chunk of time, wet races I just go full boost lap 3 then fall asleep lol