Dynamic Weather is a key part of real life football. Some features like heavy rain, snowing weather, foggy nights look amazing in single player match. We don't have this features for online matches.
Another thing is, in single player clear night sky matches look crystal whether in online its look odd, yellowish green. I don't know if only I'm seeing this or all of you having this coloring issue in online matches.
Can we play fut rivals or fut champ in raining or foggy or snowing weather at night in FIFA 20 ?